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Round|Natural|IGI

2.51ct I IF Round Natural Diamond

EX • I/IF • IGI 778679938

Shape and cutting style on the report: Round brilliant

Certificate IGI 778679938

Diamond specifications and retailer prices

From $15,602 USD
₹1,485,909 INR
As of October 29, 2026
Save $10,930 USD (41%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $26,532 USD at MOH London · As of October 29, 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 I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 778679938. Listed at 18 retailers as of October 29, 2026, with prices from $15,602 to $26,532, a $10,930 spread on the same certified stone. MOH London lists it at $26,532. 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
I
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 778679938
Dimensions8.54 × 8.61 × 5.41 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
8.54 mm8.61 mm2.51 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 778679938
Side View
Table 59.0%Crown 36.4°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 63.1%

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: Oct 29
Current: $26,532 USD|Low: $15,496 USD|High: $27,370 USD|Avg: $19,424 USD|-2.0%
MOH London
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 2, 2026
Retailer 7$15,602 USD
Retailer 12$17,148 USD
Retailer 6$17,710 USD
Retailer 13$17,874 USD
Retailer 10$17,958 USD
Retailer 8$18,230 USD
Retailer 5$18,296 USD
Retailer 3$18,396 USD
Retailer 4$19,114 USD
Retailer 2$20,629 USD
Retailer 11$20,733 USD
Retailer 9$23,242 USD
MOH London$26,532 USD

34 data points across 13 retailers

18 retailers$15,602 USD to $26,532 USD

A
Cheapest Retailer
-
$15,602 USD
₹1,485,909 INR
A
Retailer 2
-
$17,148 USD
View
A
Retailer 3
-
$17,710 USD
£13,945 GBP
View
A
Retailer 4
-
$17,874 USD
View
Final sale: no returns
A
Retailer 5
-
$17,958 USD
View
A
Retailer 6
-
$18,230 USD
View
A
Retailer 7
-
$18,296 USD
A$28,148 AUD
View
A
Retailer 8
-
$18,396 USD
SGD 24,859 SGD
View
Retailer 9
-
$20,069 USD
View
Price last confirmed 33 days ago
Retailer 10
-
$20,456 USD
View
Price last confirmed 45 days ago
A
Retailer 11
-
$20,629 USD
€19,647 EUR
View
Retailer 12
-
$20,706 USD
View
Price last confirmed 31 days ago
Retailer 13
-
$20,733 USD
View
Price last confirmed 7 days ago
Retailer 14
-
$21,503 USD
View
Price last confirmed 34 days ago
Retailer 15
-
$21,503 USD
View
Price last confirmed 43 days ago
A
Retailer 16
-
$23,242 USD
ZAR 375,469 ZAR
View
Retailer 17
-
$24,531 USD
View
Price last confirmed 43 days ago
Most Expensive
A
MOH London
A09E2B52D · Oct 29
$26,532 USD
£20,891 GBP
View
17 more retailers have this diamond
Prices start from $15,602 USDSave up to $10,930 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
$15,602 USD