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Round|Natural|GIA

2.51ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 2241088670

Certificate GIA 2241088670

Diamond specifications and retailer prices

From $19,497 NZD
As of November 5, 2026
Save $9,243 NZD (32%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $28,740 NZD at Diamonds Direct · As of November 5, 2026
View at Diamonds Direct

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2241088670. Listed at 13 retailers as of November 5, 2026, with prices from $19,497 to $28,740, a $9,243 spread on the same certified stone. Diamonds Direct lists it at $28,740. 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
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2241088670
Dimensions8.77 × 8.81 × 5.33 mm
L/W Ratio1.00
Culet sizeNone
Top View
8.77 mm8.81 mm2.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2241088670
Side View
Table 57.0%Crown 33°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.6%

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 5
Current: $28,740 NZD|Low: $19,497 NZD|High: $28,740 NZD|Avg: $23,003 NZD
Diamonds Direct
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 5$19,497 NZD
Retailer 2$20,929 NZD
Retailer 12$21,041 NZD
Retailer 8$21,062 NZD
Retailer 9$21,162 NZD
Retailer 11$21,555 NZD
Retailer 3$21,809 NZD
Retailer 7$22,818 NZD
Retailer 6$24,696 NZD
Retailer 4$24,705 NZD
Retailer 10$24,885 NZD
Retailer 13$25,689 NZD
Diamonds Direct$28,740 NZD

29 data points across 13 retailers

13 retailers$19,497 NZD to $28,740 NZD

A
Cheapest Retailer
-
$19,497 NZD
A
Retailer 2
-
$20,929 NZD
View
A
Retailer 3
-
$21,041 NZD
View
A
Retailer 4
-
$21,062 NZD
View
A
Retailer 5
-
$21,162 NZD
View
A
Retailer 6
-
$21,555 NZD
View
A
Retailer 7
-
$21,809 NZD
View
A
Retailer 8
-
$22,818 NZD
View
B+
Retailer 9
-
$24,696 NZD
View
B+
Retailer 10
-
$24,705 NZD
View
B+
Retailer 11
-
$24,885 NZD
View
B+
Retailer 12
-
$25,689 NZD
View
Most Expensive
B+
Diamonds Direct
1133708 · Nov 5
$28,740 NZD
$16,156 USD
View
12 more retailers have this diamond
Prices start from $19,497 NZDSave up to $9,243 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
$19,497 NZD