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Round|Natural|GIA

2.51ct K SI2 Round Natural Diamond

VG • K/SI2 • GIA 1246106136

Certificate GIA 1246106136

Diamond specifications and retailer prices

From $9,164 USD
As of November 5, 2026
10 retailers carry this diamond
Most expensive: $12,410 USD at Diamonds Direct · As of October 28, 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 very-good cut grade and certified by GIA 1246106136. Listed at 10 retailers as of November 5, 2026. 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
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceStrong
Crown angle38.5°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 1246106136
Dimensions8.44 × 8.39 × 5.46 mm
L/W Ratio1.01
Culet sizeNone
Top View
8.44 mm8.39 mm2.51 ctK / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1246106136
Side View
Table 56.0%Crown 38.5°Girdle: STK-THKPavilion 40.2°Culet: NDepth 64.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 5
Current: $12,410 USD|Low: $8,418 USD|High: $12,410 USD|Avg: $10,298 USD
Diamonds Direct
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 6$8,418 USD
Retailer 2$9,164 USD
Retailer 4$9,264 USD
Retailer 7$9,276 USD
Retailer 11$9,307 USD
Retailer 10$9,639 USD
Retailer 5$10,754 USD
Retailer 3$10,772 USD
Retailer 8$10,877 USD
Retailer 9$11,187 USD
Diamonds Direct$12,410 USD

7 data points across 11 retailers

10 retailers

Retailer 1
-
$8,418 USD
Price last confirmed 9 days ago
B+
Retailer 2
-
$9,164 USD
View
Retailer 3
-
$9,264 USD
View
Price last confirmed 9 days ago
Retailer 4
-
$9,276 USD
View
Price last confirmed 9 days ago
Retailer 5
-
$9,307 USD
View
Price last confirmed 10 days ago
Retailer 6
-
$9,639 USD
View
Price last confirmed 10 days ago
Retailer 7
-
$10,754 USD
View
Price last confirmed 9 days ago
Retailer 8
-
$10,877 USD
View
Price last confirmed 10 days ago
Retailer 9
-
$11,187 USD
View
Price last confirmed 11 days ago
Most Expensive
Diamonds Direct
1147873 · Oct 28
$12,410 USD
View
Price last confirmed 8 days ago
9 more retailers have this diamond
Prices start from $9,164 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
$9,164 USD