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Round|Natural|GIA

2.51ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 7566038372

Certificate GIA 7566038372

Diamond specifications and retailer prices

From $23,510 USD
As of November 1, 2026
Save $19,008 USD (45%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $42,518 USD at MOH London · As of November 2, 2026
View at MOH London

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7566038372. Listed at 18 retailers as of November 1, 2026, with prices from $23,510 to $42,518, a $19,008 spread on the same certified stone. MOH London lists it at $42,518. 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

2.51
Carat
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7566038372
Dimensions8.64 × 8.69 × 5.40 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Top View
8.64 mm8.69 mm2.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7566038372
Side View
Table 58.0%Crown 35.5°Girdle: MediumPavilion 41°Culet: NoneDepth 62.3%

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 1
Current: $42,518 USD|Low: $23,448 USD|High: $42,746 USD|Avg: $29,250 USD|+1.2%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 3, 2026
Retailer 11$23,478 USD
Retailer 3$23,510 USD
Retailer 5$24,435 USD
Retailer 9$24,787 USD
Retailer 7$26,089 USD
Retailer 10$26,417 USD
Retailer 19$26,485 USD
Retailer 4$27,224 USD
Retailer 2$27,246 USD
Retailer 16$27,871 USD
Retailer 6$28,359 USD
Retailer 20$28,585 USD
Retailer 18$29,493 USD
Retailer 13$30,026 USD
Retailer 8$30,627 USD
Retailer 12$32,591 USD
Retailer 14$32,887 USD
Retailer 17$35,211 USD
Retailer 15$37,645 USD
MOH London$42,518 USD

24 data points across 20 retailers

18 retailers$23,510 USD to $42,518 USD

A
Cheapest Retailer
-
$23,510 USD
B+
Retailer 2
-
$24,435 USD
View
B+
Retailer 3
-
$24,787 USD
View
B+
Retailer 4
-
$26,089 USD
View
Final sale: no returns
Retailer 5
-
$26,417 USD
A$40,641 AUD
View
Price last confirmed 35 days ago
B+
Retailer 6
-
$26,485 USD
View
B+
Retailer 7
-
$27,224 USD
View
B+
Retailer 8
-
$27,246 USD
£21,453 GBP
View
B+
Retailer 9
-
$27,871 USD
View
B+
Retailer 10
-
$28,359 USD
View
B+
Retailer 11
-
$28,585 USD
View
B+
Retailer 12
-
$29,493 USD
View
B+
Retailer 13
-
$30,026 USD
£23,642 GBP
View
B
Retailer 14
-
$30,627 USD
View
B
Retailer 15
-
$32,887 USD
€31,321 EUR
View
B
Retailer 16
-
$35,211 USD
£27,725 GBP
View
B
Retailer 17
-
$37,645 USD
ZAR 608,156 ZAR
View
Most Expensive
B
MOH London
C1964CE78 · Nov 2
$42,518 USD
£33,479 GBP
View
17 more retailers have this diamond
Prices start from $23,510 USDSave up to $19,008 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
2.51ct Round
$23,510 USD