CaratHunter
Plans
Round|Natural|GIA

2.51ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 2414737837

Certificate GIA 2414737837

Diamond specifications and retailer prices

From $33,067 NZD
$18,605 USD
As of November 1, 2026
Save $26,647 NZD (45%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $59,714 NZD at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

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 2414737837. Listed at 15 retailers as of October 29, 2026, with prices from $33,067 to $59,714, a $26,647 spread on the same certified stone. Diamond Quarter lists it at $59,714. 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
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2414737837
Dimensions8.77 × 8.70 × 5.35 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
8.77 mm8.70 mm2.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2414737837
Side View
Table 61.0%Crown 33.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.3%

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: Nov 1
Current: $45,544 NZD|Low: $33,067 NZD|High: $59,592 NZD|Avg: $42,577 NZD|+2.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 5$33,067 NZD
Retailer 6$34,659 NZD
Retailer 4$38,559 NZD
Retailer 7$39,588 NZD
Retailer 3$43,380 NZD
Retailer 1$45,544 NZD
Retailer 2$58,881 NZD

41 data points across 7 retailers

15 retailers$33,067 NZD to $59,714 NZD

A
Cheapest Retailer
-
$33,067 NZD
$18,605 USD
B+
Retailer 2
-
$34,659 NZD
$19,501 USD
View
B+
Retailer 3
-
$37,702 NZD
$21,213 USD
View
B+
Retailer 4
-
$38,559 NZD
£17,083 GBP
View
B+
Retailer 5
-
$39,588 NZD
$22,274 USD
View
B+
Retailer 6
-
$40,789 NZD
$22,950 USD
View
B+
Retailer 7
-
$40,789 NZD
$22,950 USD
View
B+
Retailer 8
-
$40,844 NZD
$22,981 USD
View
B
Retailer 9
-
$42,140 NZD
$23,710 USD
View
B
Retailer 10
-
$42,415 NZD
$23,865 USD
View
B+
Retailer 11
-
$43,380 NZD
£19,219 GBP
View
B
Retailer 12
-
$45,544 NZD
€24,405 EUR
View
B
Retailer 13
-
$53,411 NZD
$30,052 USD
View
B
Retailer 14
-
$58,881 NZD
£26,086 GBP
View
Most Expensive
B
Diamond Quarter
2.51SI2H2437B93DN · Oct 29
$59,714 NZD
£26,455 GBP
View
14 more retailers have this diamond
Prices start from $33,067 NZDSave up to $26,647 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.

A
2.51ct Round
$33,067 NZD