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Round|Natural|GIA

2.51ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2235674968

Certificate GIA 2235674968

Diamond specifications and retailer prices

From $38,354 NZD
$21,580 USD
As of November 1, 2026
Save $25,372 NZD (40%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $63,726 NZD at Cape Diamonds · As of November 1, 2026
View at Cape Diamonds

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2235674968. Listed at 12 retailers as of November 1, 2026, with prices from $38,354 to $63,726, a $25,372 spread on the same certified stone. Cape Diamonds lists it at $63,726. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2235674968
Dimensions8.61 × 8.65 × 5.41 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
8.61 mm8.65 mm2.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2235674968
Side View
Table 56.0%Crown 35.5°Girdle: STK-STKPavilion 40.8°Culet: NoneDepth 62.7%

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: Nov 1
Current: $63,726 NZD|Low: $38,354 NZD|High: $63,726 NZD|Avg: $48,606 NZD|+2.1%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 6$38,354 NZD
Retailer 8$41,958 NZD
Retailer 10$44,859 NZD
Retailer 2$46,499 NZD
Retailer 7$47,180 NZD
Retailer 12$47,379 NZD
Retailer 3$48,876 NZD
Retailer 11$48,876 NZD
Retailer 4$50,493 NZD
Retailer 5$52,445 NZD
Retailer 9$52,930 NZD
Cape Diamonds$63,726 NZD

43 data points across 12 retailers

12 retailers$38,354 NZD to $63,726 NZD

B+
Cheapest Retailer
-
$38,354 NZD
$21,580 USD
B+
Retailer 2
-
$41,958 NZD
$23,608 USD
View
B
Retailer 3
-
$44,859 NZD
$25,240 USD
View
B+
Retailer 4
-
$46,499 NZD
£20,600 GBP
View
B+
Retailer 5
-
$47,180 NZD
$26,546 USD
View
B
Retailer 6
-
$47,379 NZD
$26,658 USD
View
B
Retailer 7
-
$48,876 NZD
$27,500 USD
View
B
Retailer 8
-
$48,876 NZD
$27,500 USD
View
B
Retailer 9
-
$50,493 NZD
$28,410 USD
View
B
Retailer 10
-
$52,445 NZD
€28,103 EUR
View
B
Retailer 11
-
$52,930 NZD
$29,781 USD
View
Most Expensive
B
Cape Diamonds
cert_2235674968 · Nov 1
$63,726 NZD
ZAR 579,252 ZAR
View
11 more retailers have this diamond
Prices start from $38,354 NZDSave up to $25,372 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
$38,354 NZD