
Our Engagement Ring Process
At John Marmo, we believe an engagement ring or piece of fine jewelry should be crafted with the utmost care and attention to detail.
Custom Design Jewelry
Browse our unique collection of custom design jewelry. John Marmo Diamonds has the highest quality custom design jewelry that will be sure to be the perfect gift to yourself or others.


Custom Design Jewelry
Browse our unique collection of custom design jewelry. John Marmo Diamonds has the highest quality custom design jewelry that will be sure to be the perfect gift to yourself or others.

Browse Custom Bracelets
Find one of a kind bracelet from John Marmo Diamonds. Shop unique bracelets that are sure to put a smile on your face.

Browse Custom Bracelets
Find one of a kind bracelet from John Marmo Diamonds. Shop unique bracelets that are sure to put a smile on your face.
ABOUT JOHN MARMO
For more than 50 years and two generations, John Marmo Diamonds, has provided exceptionals diamonds, engagement rings and fine jewelry at outstanding savings and value to customers from coast to coast.
John Marmo Diamonds
-
Diamond Halo Pendant with Round Brilliant GIA Certified Natural Diamond in 14K White Gold
$2,800.00 -
296180 Custom Channel Set 14KW Bangle Bracelet 24 RD Dia. 3.12ct. FGVS1-2 #2
CALL FOR PRICE -
37 Round Diamond Bracelet 1.07ct. GHVS2 14K White Gold #1
CALL FOR PRICE -
31 Dia. 14KW Custom Bangle Bracelet 3 Rd Dia. .73ct. 28 (1.85mm) .69ct. FGVS1 #1
CALL FOR PRICE
BRIDAL
NEW ADDITIONS TO OUR COLLECTION
TESTIMONIALS
Tracey Brennon

My husband and I have known and worked with John for over 18 years. His diamonds are beautiful!!! He is so accommodating, super easy to work with and knowledgeable.
Chele Hughes

John Marmo is the absolute best! He worked with my husband to customize the most PERFECT engagement ring for me and he then crafted the most gorgeous wedding bands to match. We couldn’t be happier! Thank you John Marmo!
Larissa Christine

John has some of the most amazing diamonds out there. He is always wonderful to do business with!
A stunning diamond halo necklace is the perfect Christmas gift for your loved one! DM for details.
#johnmarmodiamonds #diamondhalo #diamondpendant #diamondnecklace #naturaldiamonds #onlynaturaldiamonds #diamondsareagirlsbestfriend #christmasgift #christmasgifts #charleston #charlestonsc #love #shopcharlestonsc #charlestonshopping #christmas2024 #finejewelry #kingstreetcharleston #southerncharm
A pair of diamond hoop earrings make the perfect holiday gift for that special someone in your life! DM for pricing. #johnmarmodiamonds #diamondhoops #diamondearrings #diamondjewelry #naturaldiamonds #onlynaturaldiamonds #finejewelry #insideoutsidediamondhoops #charleston #charlestonsc #christmasiscoming #holiday #love #diamonds #jewelry
Natural Diamond solitaire earrings make the perfect Christmas gift for your loved one. Shown here are a 2.00 carat total weight pair of Natural GIA Certified Triple Excellent Round Brilliant Cut Diamond Earrings set in 3-Prong Platinum Martini style setting. #johnmarmodiamonds #naturaldiamonds #diamondearrings #diamondearring #platinum #platinumjewelry #diamondjewelry #diamondsareagirlsbestfriend #diamondsareforever #giacertifieddiamond #giacertified #highjewelry #finejewelry #charleston #charlestonsc #charlestonshopping #charlestoncharm #charlestonshopping #christmas #christmasgifts