Round|Natural|GIA

2.51ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 7558836825

Certificate GIA 7558836825

Diamond specifications and retailer prices

From $21,521 USD
As of October 30, 2026
Save $15,237 USD (41%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $36,758 USD at MOH London · As of October 29, 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 7558836825. Listed at 13 retailers as of October 29, 2026, with prices from $21,521 to $36,758, a $15,237 spread on the same certified stone. MOH London lists it at $36,758. 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
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7558836825
Dimensions8.63 × 8.70 × 5.44 mm
L/W Ratio1.01
Top View
8.63 mm8.70 mm2.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7558836825
Side View
Table 57.0%CrownGirdlePavilionCuletDepth 62.7%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: $36,758 USD|Low: $21,521 USD|High: $37,003 USD|Avg: $27,083 USD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 6$21,521 USD
Retailer 7$22,810 USD
Retailer 2$23,609 USD
Retailer 8$23,980 USD
Retailer 9$24,581 USD
Retailer 5$25,899 USD
Retailer 4$28,406 USD
Retailer 3$32,371 USD
MOH London$36,758 USD

40 data points across 9 retailers

13 retailers$21,521 USD to $36,758 USD

A
Cheapest Retailer
-
$21,521 USD
B+
Retailer 2
-
$22,810 USD
View
B+
Retailer 3
-
$23,411 USD
View
B+
Retailer 4
-
$23,609 USD
£18,590 GBP
View
Retailer 5
-
$23,980 USD
A$36,892 AUD
View
Price last confirmed 27 days ago
B+
Retailer 6
-
$24,581 USD
View
B+
Retailer 7
-
$25,362 USD
View
B+
Retailer 8
-
$25,899 USD
£20,393 GBP
View
B+
Retailer 9
-
$26,337 USD
View
B+
Retailer 10
-
$28,406 USD
€27,053 EUR
View
B
Retailer 11
-
$32,371 USD
ZAR 522,964 ZAR
View
B
Retailer 12
-
$33,165 USD
View
Most Expensive
B
MOH London
D5C17EB66 · Oct 29
$36,758 USD
£28,943 GBP
View
12 more retailers have this diamond
Prices start from $21,521 USDSave up to $15,237 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
$21,521 USD