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Radiant|Natural|GIA

2.51ct F SI2 Radiant Natural Diamond

EX • F/SI2 • GIA 5231771563

Certificate GIA 5231771563

Diamond specifications and retailer prices

From $26,411 NZD
$14,860 USD
As of November 2, 2026
Save $10,913 NZD (29%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $37,323 NZD at Jared · As of November 2, 2026
View at Jared

About this 2.51ct natural radiant diamond

This 2.51ct natural radiant sits in the two to three carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5231771563. Listed at 8 retailers as of November 2, 2026, with prices from $26,411 to $37,323, a $10,913 spread on the same certified stone. Jared lists it at $37,323. 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle44.57°
Pavilion angle30.14°
OriginNatural
Grading LabGIA
CertificateGIA 5231771563
Dimensions8.95 × 6.74 × 4.47 mm
L/W Ratio1.33
Top View
8.95 mm6.74 mm2.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5231771563
Side View
Table 68.0%Crown 44.57°Girdle: STK-VTKPavilion 30.14°Culet: NoneDepth 66.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $37,323 NZD|Low: $26,411 NZD|High: $37,323 NZD|Avg: $32,002 NZD
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 5, 2026
Retailer 4$26,411 NZD
Retailer 5$28,298 NZD
Retailer 8$29,151 NZD
Retailer 2$29,475 NZD
Retailer 9$31,564 NZD
Retailer 10$33,303 NZD
Retailer 3$35,022 NZD
Retailer 6$36,133 NZD
Retailer 7$36,133 NZD
Jared$37,323 NZD

3 data points across 10 retailers

8 retailers$26,411 NZD to $37,323 NZD

A
Cheapest Retailer
-
$26,411 NZD
$14,860 USD
A
Retailer 2
-
$28,298 NZD
$15,922 USD
View
A
Retailer 3
-
$28,703 NZD
A$24,846 AUD
View
A
Retailer 4
-
$29,475 NZD
$16,584 USD
View
Final sale: no returns
A
Retailer 5
-
$35,022 NZD
$19,705 USD
View
A
Retailer 6
-
$36,133 NZD
$20,330 USD
View
A
Retailer 7
-
$36,133 NZD
$20,330 USD
View
Most Expensive
A
Jared
159330553 · Nov 2
$37,323 NZD
$21,000 USD
View
7 more retailers have this diamond
Prices start from $26,411 NZDSave up to $10,913 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 Radiant
$26,411 NZD