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Cushion|Lab Grown|IGI

2.57ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG790645996

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG790645996

Diamond specifications and retailer prices

From $2,611 AUD
$1,834 USD
As of October 28, 2026
Save $6,883 AUD (73%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $9,494 AUD at Taylor and Hart · As of October 27, 2026
View at Taylor and Hart

About this 2.57ct lab-grown cushion diamond

This 2.57ct lab-grown cushion sits in the two to three carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG790645996 or 790645996. Listed at 16 retailers as of October 27, 2026, with prices from $2,611 to $9,494, a $6,883 spread on the same certified stone. Taylor and Hart lists it at $9,494. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.57
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle31.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790645996
Dimensions9.85 × 6.95 × 4.48 mm
L/W Ratio1.42
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.85 mm6.95 mm2.57 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790645996
Side View
Table 62.0%Crown 34.6°Girdle: MED-STKPavilion 31.1°Culet: NoneDepth 64.5%

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 28
Current: $3,832 AUD|Low: $2,611 AUD|High: $10,208 AUD|Avg: $5,568 AUD|-8.8%
Retailer 1
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
Taylor and Hart
October 29, 2026
Retailer 2$2,611 AUD
Retailer 3$2,704 AUD
Retailer 9$2,751 AUD
Retailer 13$2,946 AUD
Retailer 5$3,066 AUD
Retailer 1$3,832 AUD
Retailer 10$3,869 AUD
Retailer 4$4,172 AUD
Retailer 6$5,597 AUD
Retailer 12$6,430 AUD
Retailer 8$6,977 AUD
Retailer 15$7,288 AUD
Retailer 11$7,733 AUD
Retailer 14$8,229 AUD
Retailer 7$9,041 AUD
Taylor and Hart$9,494 AUD

41 data points across 16 retailers

16 retailers$2,611 AUD to $9,494 AUD

A
Cheapest Retailer
-
$2,611 AUD
$1,834 USD
Final sale: no returns
A
Retailer 2
-
$2,704 AUD
$1,900 USD
View
Price last confirmed 17 days ago
A
Retailer 3
-
$2,751 AUD
£1,522 GBP
View
A
Retailer 4
-
$2,946 AUD
$2,070 USD
View
A
Retailer 5
-
$3,066 AUD
$2,154 USD
View
A
Retailer 6
-
$3,832 AUD
£2,120 GBP
View
A
Retailer 7
-
$3,869 AUD
$2,718 USD
View
A
Retailer 8
-
$4,172 AUD
$2,931 USD
View
B+
Retailer 9
-
$5,597 AUD
£3,096 GBP
View
B+
Retailer 10
-
$6,430 AUD
View
Price last confirmed 7 days ago
B+
Retailer 11
-
$6,977 AUD
ZAR 79,185 ZAR
View
B+
Retailer 12
-
$7,288 AUD
$5,120 USD
View
B+
Retailer 13
-
$7,733 AUD
£4,278 GBP
View
B
Retailer 14
-
$8,229 AUD
$5,782 USD
View
B+
Retailer 15
-
$9,041 AUD
SGD 8,583 SGD
View
Most Expensive
B
Taylor and Hart
Y9RBHW7 · Oct 27
$9,494 AUD
$6,670 USD
View
15 more retailers have this diamond
Prices start from $2,611 AUDSave up to $6,883 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
2.57ct Cushion
$2,611 AUD