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Radiant|Natural|GIA

2.51ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 6405602111

Certificate GIA 6405602111

Diamond specifications and retailer prices

From €21,773 EUR
₹2,316,703 INR
As of October 31, 2026
Save €14,729 EUR (40%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €36,503 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 2.51ct natural radiant diamond

This 2.51ct natural radiant sits in the two to three carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6405602111. Listed at 7 retailers as of October 29, 2026, with prices from €21,773 to €36,503, a €14,729 spread on the same certified stone. MOH London lists it at €36,503. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6405602111
Dimensions8.50 × 7.04 × 4.90 mm
L/W Ratio1.21
Top View
8.50 mm7.04 mm2.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 6405602111
Side View
Table 70.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 69.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €36,503 EUR|Low: €21,718 EUR|High: €36,745 EUR|Avg: €27,719 EUR|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
October 31, 2026
Retailer 2€21,773 EUR
Retailer 4€23,873 EUR
Retailer 3€28,208 EUR
MOH London€36,503 EUR

44 data points across 4 retailers

7 retailers€21,773 EUR to €36,503 EUR

B+
Cheapest Retailer
-
€21,773 EUR
₹2,316,703 INR
B+
Retailer 2
-
€21,779 EUR
$24,332 USD
View
B+
Retailer 3
-
€22,279 EUR
A$38,293 AUD
View
B
Retailer 4
-
€23,873 EUR
£21,001 GBP
View
B
Retailer 5
-
€24,111 EUR
$26,937 USD
View
B
Retailer 6
-
€28,208 EUR
View
Most Expensive
B
MOH London
758C34DF9 · Oct 29
€36,503 EUR
£32,111 GBP
View
6 more retailers have this diamond
Prices start from €21,773 EURSave up to €14,729 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.

B+
2.51ct Radiant
€21,773 EUR