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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 $35,909 NZD
$20,204 USD
As of October 30, 2026
Save $25,189 NZD (41%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $61,097 NZD 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 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 30, 2026, with prices from $35,909 to $61,097, a $25,189 spread on the same certified stone. MOH London lists it at $61,097. 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
Colour
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 →
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 30
Current: $61,097 NZD|Low: $34,284 NZD|High: $61,835 NZD|Avg: $42,253 NZD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 5$34,284 NZD
Retailer 2$36,253 NZD
Retailer 6$37,490 NZD
Retailer 4$39,439 NZD
Retailer 7$41,077 NZD
Retailer 3$45,603 NZD
MOH London$61,097 NZD

37 data points across 7 retailers

17 retailers$35,909 NZD to $61,097 NZD

Retailer 1
-
$34,284 NZD
$19,290 USD
Price last confirmed 8 days ago
B+
Retailer 2
-
$35,909 NZD
$20,204 USD
View
B+
Retailer 3
-
$35,965 NZD
$20,236 USD
View
B+
Retailer 4
-
$36,253 NZD
₹1,942,624 INR
View
B+
Retailer 5
-
$37,490 NZD
$21,094 USD
View
Final sale: no returns
B+
Retailer 6
-
$39,122 NZD
$22,012 USD
View
B+
Retailer 7
-
$39,439 NZD
£17,473 GBP
View
B+
Retailer 8
-
$41,077 NZD
$23,112 USD
View
B
Retailer 9
-
$41,695 NZD
$23,460 USD
View
B
Retailer 10
-
$41,695 NZD
$23,460 USD
View
B
Retailer 11
-
$41,808 NZD
$23,523 USD
View
B
Retailer 12
-
$42,381 NZD
$23,846 USD
View
B
Retailer 13
-
$43,082 NZD
$24,240 USD
View
B
Retailer 14
-
$44,011 NZD
$24,763 USD
View
B
Retailer 15
-
$45,603 NZD
€24,437 EUR
View
B
Retailer 16
-
$55,422 NZD
$31,183 USD
View
Most Expensive
B
MOH London
5797D3460 · Nov 1
$61,097 NZD
£27,068 GBP
View
16 more retailers have this diamond
Prices start from $35,909 NZDSave up to $25,189 NZD

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 Round
$35,909 NZD