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Round|Natural|GIA

2.51ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6392995370

Certificate GIA 6392995370

Diamond specifications and retailer prices

From €17,455 EUR
$19,501 USD
As of October 30, 2026
Save €12,358 EUR (41%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €29,813 EUR 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6392995370. Listed at 14 retailers as of October 29, 2026, with prices from €17,455 to €29,813, a €12,358 spread on the same certified stone. MOH London lists it at €29,813. 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
H
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6392995370
Dimensions8.61 × 8.66 × 5.40 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
8.61 mm8.66 mm2.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6392995370
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.5%

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: Oct 30
Current: €29,813 EUR|Low: €17,169 EUR|High: €30,012 EUR|Avg: €21,979 EUR|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 3€17,169 EUR
Retailer 6€17,455 EUR
Retailer 12€18,988 EUR
Retailer 2€19,419 EUR
Retailer 8€19,937 EUR
Retailer 10€20,570 EUR
Retailer 11€21,361 EUR
Retailer 7€22,111 EUR
Retailer 5€23,039 EUR
Retailer 4€25,476 EUR
Retailer 9€26,899 EUR
MOH London€29,813 EUR

40 data points across 12 retailers

14 retailers€17,455 EUR to €29,813 EUR

A
Cheapest Retailer
-
€17,455 EUR
$19,501 USD
B+
Retailer 2
-
€18,988 EUR
$21,213 USD
View
B+
Retailer 3
-
€19,419 EUR
£17,083 GBP
View
B+
Retailer 4
-
€19,937 EUR
$22,274 USD
View
B+
Retailer 5
-
€20,542 EUR
$22,950 USD
View
B+
Retailer 6
-
€20,542 EUR
$22,950 USD
View
B+
Retailer 7
-
€20,570 EUR
$22,981 USD
View
B+
Retailer 8
-
€21,223 EUR
$23,710 USD
View
B
Retailer 9
-
€21,361 EUR
$23,865 USD
View
Retailer 10
-
€22,111 EUR
£19,451 GBP
View
Price last confirmed 31 days ago
B
Retailer 11
-
€23,039 EUR
View
B
Retailer 12
-
€26,899 EUR
$30,052 USD
View
B
Retailer 13
-
€28,955 EUR
£25,472 GBP
View
Most Expensive
B
MOH London
ADEFF7D67 · Oct 29
€29,813 EUR
£26,226 GBP
View
13 more retailers have this diamond
Prices start from €17,455 EURSave up to €12,358 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
€17,455 EUR