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Round|Natural|GIA

1.00ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6561364234

Certificate GIA 6561364234

Diamond specifications and retailer prices

From $1,581 USD
As of November 5, 2026
Save $2,167 USD (58%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $3,748 USD at MOH London · As of November 4, 2026
View at MOH London

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6561364234. Listed at 9 retailers as of November 4, 2026, with prices from $1,581 to $3,748, a $2,167 spread on the same certified stone. MOH London lists it at $3,748. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
H
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6561364234
Dimensions6.33 × 6.37 × 4.02 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle, Indented Natural
Top View
6.33 mm6.37 mm1.00 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561364234
Side View
Table 57.0%Crown 35°Girdle: THN-STKPavilion 41.4°Culet: NoneDepth 63.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $3,748 USD|Low: $1,581 USD|High: $3,912 USD|Avg: $2,288 USD|-4.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8$1,581 USD
Retailer 5$1,802 USD
Retailer 6$1,853 USD
Retailer 9$1,938 USD
Retailer 2$1,966 USD
Retailer 7$2,190 USD
Retailer 3$2,251 USD
Retailer 4$2,688 USD
MOH London$3,748 USD

16 data points across 9 retailers

9 retailers$1,581 USD to $3,748 USD

A
Cheapest Retailer
-
$1,581 USD
A
Retailer 2
-
$1,802 USD
View
A
Retailer 3
-
$1,853 USD
View
A
Retailer 4
-
$1,938 USD
View
A
Retailer 5
-
$1,966 USD
View
A
Retailer 6
-
$2,190 USD
View
A
Retailer 7
-
$2,251 USD
View
B+
Retailer 8
-
$2,688 USD
View
Most Expensive
B
MOH London
EAF58D2F9 · Nov 4
$3,748 USD
£2,951 GBP
View
8 more retailers have this diamond
Prices start from $1,581 USDSave up to $2,167 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.

A
1.00ct Round
$1,581 USD