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Round|Natural|GIA

2.51ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 2195428383

Certificate GIA 2195428383

Diamond specifications and retailer prices

From €17,266 EUR
$19,290 USD
As of October 25, 2026
Save €13,668 EUR (44%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €30,935 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 2195428383. Listed at 17 retailers as of October 25, 2026, with prices from €17,266 to €30,935, a €13,668 spread on the same certified stone. MOH London lists it at €30,935. 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
SymmetryVery Good
FluorescenceFaint
Crown angle35°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2195428383
Dimensions8.67 × 8.61 × 5.37 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Culet sizeNone
Top View
8.67 mm8.61 mm2.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2195428383
Side View
Table 55.0%Crown 35°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.4%

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 25
Current: €30,935 EUR|Low: €17,266 EUR|High: €31,142 EUR|Avg: €21,206 EUR|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 5€17,266 EUR
Retailer 3€18,262 EUR
Retailer 6€18,881 EUR
Retailer 2€19,863 EUR
Retailer 7€20,687 EUR
Retailer 4€23,129 EUR
MOH London€30,935 EUR

38 data points across 7 retailers

17 retailers€17,266 EUR to €30,935 EUR

A
Cheapest Retailer
-
€17,266 EUR
$19,290 USD
B+
Retailer 2
-
€18,084 EUR
$20,204 USD
View
B+
Retailer 3
-
€18,113 EUR
$20,236 USD
View
B+
Retailer 4
-
€18,262 EUR
₹1,943,044 INR
View
B+
Retailer 5
-
€18,881 EUR
$21,094 USD
View
Final sale: no returns
B+
Retailer 6
-
€19,703 EUR
$22,012 USD
View
B+
Retailer 7
-
€19,863 EUR
£17,473 GBP
View
B+
Retailer 8
-
€20,687 EUR
$23,112 USD
View
B+
Retailer 9
-
€20,999 EUR
$23,460 USD
View
B+
Retailer 10
-
€20,999 EUR
$23,460 USD
View
B
Retailer 11
-
€21,055 EUR
$23,523 USD
View
B
Retailer 12
-
€21,344 EUR
$23,846 USD
View
B
Retailer 13
-
€21,697 EUR
$24,240 USD
View
B
Retailer 14
-
€22,165 EUR
$24,763 USD
View
B+
Retailer 15
-
€23,129 EUR
View
B
Retailer 16
-
€27,912 EUR
$31,183 USD
View
Most Expensive
B
MOH London
5797D3460 · Oct 29
€30,935 EUR
£27,213 GBP
View
16 more retailers have this diamond
Prices start from €17,266 EURSave up to €13,668 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
€17,266 EUR