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Cushion|Natural|IGI

2.51ct I SI2 Cushion Natural Diamond

VG • I/SI2 • IGI 789609768

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI 789609768

Diamond specifications and retailer prices

From $13,195 AUD
₹882,762 INR
As of October 31, 2026
Save $7,602 AUD (37%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $20,797 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 2.51ct natural cushion diamond

This 2.51ct natural cushion sits in the two to three carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 789609768. Listed at 8 retailers as of October 31, 2026, with prices from $13,195 to $20,797, a $7,602 spread on the same certified stone. MOH London lists it at $20,797. 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
I
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.7°
Pavilion angle34°
OriginNatural
Grading LabIGI
CertificateIGI 789609768
Dimensions8.56 × 6.89 × 4.80 mm
L/W Ratio1.24
Girdle conditionFaceted
Culet sizePointed
Top View
8.56 mm6.89 mm2.51 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 789609768
Side View
Table 63.0%Crown 42.7°Girdle: STK-THKPavilion 34°Culet: NoneDepth 69.7%

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: $20,797 AUD|Low: $13,162 AUD|High: $21,048 AUD|Avg: $16,051 AUD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 4$13,195 AUD
Retailer 6$13,773 AUD
Retailer 5$14,699 AUD
Retailer 2$15,532 AUD
Retailer 7$15,718 AUD
Retailer 3$16,776 AUD
MOH London$20,797 AUD

46 data points across 7 retailers

8 retailers$13,195 AUD to $20,797 AUD

A
Cheapest Retailer
-
$13,195 AUD
₹882,762 INR
A
Retailer 2
-
$13,773 AUD
$9,675 USD
View
B+
Retailer 3
-
$14,699 AUD
$10,325 USD
View
Final sale: no returns
A
Retailer 4
-
$14,757 AUD
View
A
Retailer 5
-
$15,532 AUD
£8,591 GBP
View
B+
Retailer 6
-
$15,718 AUD
$11,041 USD
View
A
Retailer 7
-
$16,776 AUD
€11,223 EUR
View
Most Expensive
B+
MOH London
ABC6C1028 · Nov 1
$20,797 AUD
£11,503 GBP
View
7 more retailers have this diamond
Prices start from $13,195 AUDSave up to $7,602 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 Cushion
$13,195 AUD