Round|Natural|IGI

2.51ct I VVS1 Round Natural Diamond

EX • I/VVS1 • IGI 821604050

Shape and cutting style on the report: Round brilliant

Certificate IGI 821604050

Diamond specifications and retailer prices

From $19,128 USD
A$29,428 AUD
As of October 31, 2026
7 retailers carry this diamond
Most expensive: $26,971 USD at MOH London · As of October 5, 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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI 821604050. Listed at 7 retailers as of October 31, 2026. 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
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 821604050
Dimensions8.59 × 8.66 × 5.38 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
8.59 mm8.66 mm2.51 ctI / VVS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 821604050
Side View
Table 58.0%Crown 35.9°Girdle: MED-STKPavilion 40.7°CuletDepth 62.3%

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 31
Current: $26,971 USD|Low: $17,265 USD|High: $26,971 USD|Avg: $19,993 USD|+0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 7, 2026
Retailer 4$17,436 USD
Retailer 6$17,487 USD
Retailer 3$18,562 USD
Retailer 2$18,585 USD
Retailer 8$18,876 USD
Retailer 9$19,128 USD
Retailer 7$19,883 USD
Retailer 5$20,624 USD
Retailer 10$23,975 USD
MOH London$26,971 USD

16 data points across 10 retailers

7 retailers

Retailer 1
-
$17,487 USD
Price last confirmed 26 days ago
A
Retailer 2
-
$19,128 USD
A$29,428 AUD
View
Retailer 3
-
$19,777 USD
View
Price last confirmed 31 days ago
Retailer 4
-
$20,405 USD
View
Price last confirmed 30 days ago
Retailer 5
-
$21,189 USD
View
Price last confirmed 31 days ago
Retailer 6
-
$24,413 USD
View
Price last confirmed 25 days ago
Most Expensive
MOH London
0A1A45EDF · Oct 5
$26,971 USD
£21,237 GBP
View
Price last confirmed 26 days ago
6 more retailers have this diamond
Prices start from $19,128 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
$19,128 USD