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Round|Natural|GIA

2.51ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 1523286056

Certificate GIA 1523286056

Diamond specifications and retailer prices

From $19,475 USD
As of October 25, 2026
Save $14,658 USD (43%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $34,133 USD at MOH London · As of October 26, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1523286056. Listed at 16 retailers as of October 25, 2026, with prices from $19,475 to $34,133, a $14,658 spread on the same certified stone. MOH London lists it at $34,133. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle32°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1523286056
Dimensions8.80 × 8.74 × 5.38 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Cert comments
Additional twinning wisps, pinpoints and surface graining are not shown.
Top View
8.80 mm8.74 mm2.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1523286056
Side View
Table 59.0%Crown 32°Girdle: THN-STKPavilion 41.8°Culet: NoneDepth 61.4%

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 25
Current: $34,133 USD|Low: $19,475 USD|High: $34,497 USD|Avg: $24,146 USD|-0.9%
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
October 30, 2026
Retailer 11$19,475 USD
Retailer 6$19,988 USD
Retailer 14$20,065 USD
Retailer 5$21,826 USD
Retailer 9$22,002 USD
Retailer 4$22,836 USD
Retailer 15$22,917 USD
Retailer 3$23,540 USD
Retailer 12$23,540 USD
Retailer 7$23,645 USD
Retailer 13$24,320 USD
Retailer 16$24,554 USD
Retailer 2$25,188 USD
Retailer 10$25,620 USD
Retailer 8$30,920 USD
MOH London$34,133 USD

39 data points across 16 retailers

16 retailers$19,475 USD to $34,133 USD

A
Cheapest Retailer
-
$19,475 USD
A
Retailer 2
-
$19,988 USD
View
A
Retailer 3
-
$20,065 USD
View
A
Retailer 4
-
$21,826 USD
View
A
Retailer 5
-
$22,002 USD
£17,324 GBP
View
B+
Retailer 6
-
$22,836 USD
View
B+
Retailer 7
-
$22,917 USD
View
B+
Retailer 8
-
$23,540 USD
View
B+
Retailer 9
-
$23,540 USD
View
B+
Retailer 10
-
$23,645 USD
View
B+
Retailer 11
-
$24,320 USD
View
B+
Retailer 12
-
$24,554 USD
View
B+
Retailer 13
-
$25,188 USD
£19,833 GBP
View
B+
Retailer 14
-
$25,620 USD
€24,400 EUR
View
B
Retailer 15
-
$30,920 USD
View
Most Expensive
B
MOH London
192A2BDAA · Oct 26
$34,133 USD
£26,876 GBP
View
15 more retailers have this diamond
Prices start from $19,475 USDSave up to $14,658 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
$19,475 USD