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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 $10,960 USD
As of November 5, 2026
Save $5,196 USD (32%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $16,156 USD 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 $10,960 to $16,156, a $5,196 spread on the same certified stone. Diamonds Direct lists it at $16,156. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $16,156 USD|Low: $10,960 USD|High: $16,156 USD|Avg: $12,931 USD
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$10,960 USD
Retailer 2$11,765 USD
Retailer 12$11,828 USD
Retailer 8$11,840 USD
Retailer 9$11,896 USD
Retailer 11$12,117 USD
Retailer 3$12,260 USD
Retailer 7$12,827 USD
Retailer 6$13,883 USD
Retailer 4$13,888 USD
Retailer 10$13,989 USD
Retailer 13$14,441 USD
Diamonds Direct$16,156 USD

29 data points across 13 retailers

13 retailers$10,960 USD to $16,156 USD

A
Cheapest Retailer
-
$10,960 USD
A
Retailer 2
-
$11,765 USD
View
A
Retailer 3
-
$11,828 USD
View
A
Retailer 4
-
$11,840 USD
View
A
Retailer 5
-
$11,896 USD
View
A
Retailer 6
-
$12,117 USD
View
A
Retailer 7
-
$12,260 USD
View
A
Retailer 8
-
$12,827 USD
View
B+
Retailer 9
-
$13,883 USD
View
B+
Retailer 10
-
$13,888 USD
View
B+
Retailer 11
-
$13,989 USD
View
B+
Retailer 12
-
$14,441 USD
View
Most Expensive
B+
Diamonds Direct
1133708 · Nov 5
$16,156 USD
View
12 more retailers have this diamond
Prices start from $10,960 USDSave up to $5,196 USD

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
$10,960 USD