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Round|Natural|IGI

2.51ct J VS1 Round Natural Diamond

EX • J/VS1 • IGI 819634389

Shape and cutting style on the report: Round brilliant

Certificate IGI 819634389

Diamond specifications and retailer prices

From $16,331 AUD
₹1,092,568 INR
As of October 30, 2026
Save $11,974 AUD (42%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $28,306 AUD 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 J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI 819634389. Listed at 15 retailers as of October 29, 2026, with prices from $16,331 to $28,306, a $11,974 spread on the same certified stone. MOH London lists it at $28,306. 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
J
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 819634389
Dimensions8.60 × 8.68 × 5.40 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
8.60 mm8.68 mm2.51 ctJ / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 819634389
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.5%

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 30
Current: $28,306 AUD|Low: $16,233 AUD|High: $43,068 AUD|Avg: $21,957 AUD|+0.4%
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
Retailer 14
Retailer 15
October 31, 2026
Retailer 8$16,331 AUD
Retailer 6$18,463 AUD
Retailer 7$19,009 AUD
Retailer 5$19,069 AUD
Retailer 2$19,219 AUD
Retailer 14$19,539 AUD
Retailer 11$19,899 AUD
Retailer 12$21,226 AUD
Retailer 13$21,558 AUD
Retailer 4$22,388 AUD
Retailer 10$22,546 AUD
Retailer 9$24,249 AUD
Retailer 3$24,795 AUD
Retailer 15$25,539 AUD
MOH London$28,306 AUD

15 data points across 15 retailers

15 retailers$16,331 AUD to $28,306 AUD

A
Cheapest Retailer
-
$16,331 AUD
₹1,092,568 INR
A
Retailer 2
-
$18,463 AUD
$12,969 USD
View
A
Retailer 3
-
$19,009 AUD
$13,353 USD
View
A
Retailer 4
-
$19,069 AUD
$13,395 USD
View
Final sale: no returns
A
Retailer 5
-
$19,219 AUD
£10,630 GBP
View
A
Retailer 6
-
$19,539 AUD
$13,725 USD
View
A
Retailer 7
-
$19,899 AUD
$13,978 USD
View
A
Retailer 8
-
$21,226 AUD
$14,910 USD
View
A
Retailer 9
-
$21,558 AUD
$15,143 USD
View
B+
Retailer 10
-
$22,388 AUD
$15,726 USD
View
B+
Retailer 11
-
$22,546 AUD
€15,083 EUR
View
B+
Retailer 12
-
$24,249 AUD
£13,412 GBP
View
B+
Retailer 13
-
$24,795 AUD
ZAR 281,376 ZAR
View
B+
Retailer 14
-
$25,539 AUD
$17,940 USD
View
Most Expensive
B
MOH London
D81066CC7 · Oct 29
$28,306 AUD
£15,656 GBP
View
14 more retailers have this diamond
Prices start from $16,331 AUDSave up to $11,974 AUD

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
$16,331 AUD