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Round|Natural|GIA

1.21ct H VS1 Round Natural Diamond

EX • H/VS1 • GIA 6555731760

Certificate GIA 6555731760

Diamond specifications and retailer prices

From $4,409 USD
As of November 7, 2026
Save $3,219 USD (42%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $7,628 USD at MOH London · As of November 4, 2026
View at MOH London

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 6555731760. Listed at 16 retailers as of November 4, 2026, with prices from $4,409 to $7,628, a $3,219 spread on the same certified stone. MOH London lists it at $7,628. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
H
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6555731760
Dimensions6.79 × 6.74 × 4.24 mm
L/W Ratio1.01
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Needle
Top View
6.79 mm6.74 mm1.21 ctH / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555731760
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 7
Current: $7,628 USD|Low: $4,027 USD|High: $7,873 USD|Avg: $5,149 USD|-3.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 7, 2026
Retailer 7$4,027 USD
Retailer 8$4,409 USD
Retailer 3$4,432 USD
Retailer 10$4,497 USD
Retailer 12$4,530 USD
Retailer 13$4,683 USD
Retailer 2$4,851 USD
Retailer 11$4,917 USD
Retailer 4$4,950 USD
Retailer 6$4,953 USD
Retailer 15$5,327 USD
Retailer 5$5,577 USD
Retailer 14$5,858 USD
Retailer 9$6,029 USD
MOH London$7,628 USD

28 data points across 15 retailers

16 retailers$4,409 USD to $7,628 USD

Retailer 1
-
$4,027 USD
Price last confirmed 37 days ago
B+
Retailer 2
-
$4,409 USD
View
B+
Retailer 3
-
$4,432 USD
View
Final sale: no returns
B+
Retailer 4
-
$4,497 USD
View
B+
Retailer 5
-
$4,530 USD
View
B+
Retailer 6
-
$4,683 USD
View
B+
Retailer 7
-
$4,851 USD
View
Retailer 8
-
$4,884 USD
View
Price last confirmed 37 days ago
B+
Retailer 9
-
$4,917 USD
View
Retailer 10
-
$4,950 USD
View
Price last confirmed 12 days ago
Retailer 11
-
$4,953 USD
View
Price last confirmed 35 days ago
B+
Retailer 12
-
$5,327 USD
View
B+
Retailer 13
-
$5,577 USD
View
B+
Retailer 14
-
$5,858 USD
View
B
Retailer 15
-
$6,029 USD
View
Most Expensive
B
MOH London
4091A0B49 · Nov 4
$7,628 USD
£6,006 GBP
View
15 more retailers have this diamond
Prices start from $4,409 USDSave up to $3,219 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
1.21ct Round
$4,409 USD