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2.51ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 1523286056

Certificate GIA 1523286056

Diamond specifications and retailer prices

From €17,891 EUR
$19,988 USD
As of October 31, 2026
Save €12,620 EUR (41%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €30,511 EUR at MOH London · As of November 1, 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 31, 2026, with prices from €17,891 to €30,511, a €12,620 spread on the same certified stone. MOH London lists it at €30,511. 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 31
Current: €30,511 EUR|Low: €17,432 EUR|High: €30,878 EUR|Avg: €21,381 EUR|-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
November 1, 2026
Retailer 8€17,432 EUR
Retailer 11€17,960 EUR
Retailer 5€19,536 EUR
Retailer 7€19,694 EUR
Retailer 4€20,440 EUR
Retailer 12€20,513 EUR
Retailer 3€21,070 EUR
Retailer 9€21,070 EUR
Retailer 10€21,769 EUR
Retailer 13€21,978 EUR
Retailer 6€22,478 EUR
Retailer 2€22,771 EUR
MOH London€30,511 EUR

37 data points across 13 retailers

16 retailers€17,891 EUR to €30,511 EUR

Retailer 1
-
€17,432 EUR
$19,475 USD
Price last confirmed 7 days ago
A
Retailer 2
-
€17,891 EUR
$19,988 USD
View
A
Retailer 3
-
€17,960 EUR
$20,065 USD
View
A
Retailer 4
-
€19,536 EUR
$21,826 USD
View
A
Retailer 5
-
€19,694 EUR
£17,325 GBP
View
B+
Retailer 6
-
€20,440 EUR
$22,836 USD
View
B+
Retailer 7
-
€20,513 EUR
$22,917 USD
View
B+
Retailer 8
-
€21,070 EUR
$23,540 USD
View
B+
Retailer 9
-
€21,070 EUR
$23,540 USD
View
B+
Retailer 10
-
€21,164 EUR
$23,645 USD
View
B+
Retailer 11
-
€21,769 EUR
$24,320 USD
View
B+
Retailer 12
-
€21,978 EUR
$24,554 USD
View
B+
Retailer 13
-
€22,478 EUR
£19,774 GBP
View
B+
Retailer 14
-
€22,771 EUR
View
B
Retailer 15
-
€27,676 EUR
$30,920 USD
View
Most Expensive
B
MOH London
192A2BDAA · Nov 1
€30,511 EUR
£26,840 GBP
View
15 more retailers have this diamond
Prices start from €17,891 EURSave up to €12,620 EUR

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
€17,891 EUR