Round|Natural|GIA

2.51ct K SI1 Round Natural Diamond

VG • K/SI1 • GIA 2239127815

Certificate GIA 2239127815

Diamond specifications and retailer prices

From $14,067 USD
As of November 4, 2026
Save $4,598 USD (25%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $18,665 USD at Yorxs · As of November 2, 2026
View at Yorxs

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 SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 2239127815. Listed at 6 retailers as of November 2, 2026, with prices from $14,067 to $18,665, a $4,598 spread on the same certified stone. Yorxs lists it at $18,665. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.51
Carat
K
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2239127815
Dimensions8.63 × 8.65 × 5.39 mm
L/W Ratio1.00
Top View
8.63 mm8.65 mm2.51 ctK / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2239127815
Side View
Table 58.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 62.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $14,797 USD|Low: $14,067 USD|High: $18,749 USD|Avg: $16,362 USD|-1.4%
Retailer 1
Retailer 2
Retailer 3
Yorxs
November 5, 2026
Retailer 3$14,067 USD
Retailer 1$14,797 USD
Retailer 2$17,937 USD
Yorxs$18,665 USD

42 data points across 4 retailers

6 retailers$14,067 USD to $18,665 USD

B+
Cheapest Retailer
-
$14,067 USD
B+
Retailer 2
-
$14,704 USD
View
B+
Retailer 3
-
$14,797 USD
View
B+
Retailer 4
-
$15,065 USD
View
B
Retailer 5
-
$17,937 USD
View
Most Expensive
B
Yorxs
TIM2640 · Nov 2
$18,665 USD
€17,776 EUR
View
5 more retailers have this diamond
Prices start from $14,067 USDSave up to $4,598 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.

B+
2.51ct Round
$14,067 USD