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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 $19,290 USD
As of October 25, 2026
Save $15,271 USD (44%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $34,561 USD 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 $19,290 to $34,561, a $15,271 spread on the same certified stone. MOH London lists it at $34,561. 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: $34,561 USD|Low: $19,290 USD|High: $34,792 USD|Avg: $23,881 USD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 5$19,290 USD
Retailer 2$20,473 USD
Retailer 6$21,094 USD
Retailer 3$22,190 USD
Retailer 4$25,839 USD
MOH London$34,561 USD

38 data points across 6 retailers

17 retailers$19,290 USD to $34,561 USD

A
Cheapest Retailer
-
$19,290 USD
B+
Retailer 2
-
$20,204 USD
View
B+
Retailer 3
-
$20,236 USD
View
B+
Retailer 4
-
$20,473 USD
₹1,949,810 INR
View
B+
Retailer 5
-
$21,094 USD
View
Final sale: no returns
B+
Retailer 6
-
$22,012 USD
View
B+
Retailer 7
-
$22,190 USD
£17,472 GBP
View
B+
Retailer 8
-
$23,112 USD
View
B+
Retailer 9
-
$23,460 USD
View
B+
Retailer 10
-
$23,460 USD
View
B
Retailer 11
-
$23,523 USD
View
B
Retailer 12
-
$23,846 USD
View
B
Retailer 13
-
$24,240 USD
View
B
Retailer 14
-
$24,763 USD
View
B+
Retailer 15
-
$25,839 USD
€24,609 EUR
View
B
Retailer 16
-
$31,183 USD
View
Most Expensive
B
MOH London
5797D3460 · Oct 29
$34,561 USD
£27,213 GBP
View
16 more retailers have this diamond
Prices start from $19,290 USDSave up to $15,271 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
$19,290 USD