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Round|Natural|IGI

2.51ct K IF Round Natural Diamond

EX • K/IF • IGI 737595422

Shape and cutting style on the report: Round brilliant

Certificate IGI 737595422

Diamond specifications and retailer prices

From $9,838 USD
As of October 30, 2026
Save $6,211 USD (39%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $16,049 USD at MOH London · As of November 4, 2026
View at MOH London

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 737595422. Listed at 10 retailers as of October 30, 2026, with prices from $9,838 to $16,049, a $6,211 spread on the same certified stone. MOH London lists it at $16,049. At this carat range, natural pricing varies dramatically across retailers, so the cross-retailer spread on this exact stone is your single best indicator of fair price.

The 4Cs

2.51
Carat
K
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 737595422
Dimensions8.52 × 8.61 × 5.46 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
8.52 mm8.61 mm2.51 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 737595422
Side View
Table 56.0%Crown 36.2°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.6%

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: Oct 30
Current: $16,049 USD|Low: $9,530 USD|High: $56,331 USD|Avg: $14,234 USD|-6.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9$9,838 USD
Retailer 7$10,552 USD
Retailer 6$10,762 USD
Retailer 4$10,990 USD
Retailer 10$11,423 USD
Retailer 8$12,216 USD
Retailer 2$12,491 USD
Retailer 5$12,882 USD
Retailer 3$14,148 USD
MOH London$16,049 USD

40 data points across 10 retailers

10 retailers$9,838 USD to $16,049 USD

A
Cheapest Retailer
-
$9,838 USD
A
Retailer 2
-
$10,552 USD
View
A
Retailer 3
-
$10,762 USD
View
A
Retailer 4
-
$10,990 USD
View
Retailer 5
-
$11,423 USD
View
Price last confirmed 25 days ago
A
Retailer 6
-
$12,216 USD
View
A
Retailer 7
-
$12,491 USD
View
A
Retailer 8
-
$12,882 USD
View
A
Retailer 9
-
$14,148 USD
View
Most Expensive
A
MOH London
D85FBF12C · Nov 4
$16,049 USD
£12,637 GBP
View
9 more retailers have this diamond
Prices start from $9,838 USDSave up to $6,211 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
$9,838 USD