CaratHunter
Plans
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 $1,834 USD
As of October 28, 2026
Save $4,836 USD (73%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,670 USD 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 $1,834 to $6,670, a $4,836 spread on the same certified stone. Taylor and Hart lists it at $6,670. 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
Color
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: $1,932 USD|Low: $1,834 USD|High: $7,171 USD|Avg: $3,935 USD|-0.7%
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 28, 2026
Retailer 2$1,834 USD
Retailer 3$1,900 USD
Retailer 1$1,932 USD
Retailer 13$2,070 USD
Retailer 5$2,154 USD
Retailer 8$2,676 USD
Retailer 9$2,718 USD
Retailer 4$2,931 USD
Retailer 6$3,932 USD
Retailer 12$4,518 USD
Retailer 11$4,882 USD
Retailer 15$5,120 USD
Retailer 10$5,433 USD
Retailer 14$5,782 USD
Retailer 7$6,351 USD
Taylor and Hart$6,670 USD

40 data points across 16 retailers

16 retailers$1,834 USD to $6,670 USD

A
Cheapest Retailer
-
$1,834 USD
Final sale: no returns
A
Retailer 2
-
$1,900 USD
View
Price last confirmed 16 days ago
Returns within 30 days
A
Retailer 3
-
$1,932 USD
£1,521 GBP
View
Returns within 30 days
A
Retailer 4
-
$2,070 USD
View
Returns within 40 days
A
Retailer 5
-
$2,154 USD
View
Returns within 30 days
A
Retailer 6
-
$2,676 USD
£2,107 GBP
View
Returns within 30 days
A
Retailer 7
-
$2,718 USD
View
Returns within 30 days
A
Retailer 8
-
$2,931 USD
View
Returns within 30 days
B+
Retailer 9
-
$3,932 USD
£3,096 GBP
View
Returns within 30 days
B+
Retailer 10
-
$4,518 USD
A$6,950 AUD
View
B+
Retailer 11
-
$4,882 USD
ZAR 78,875 ZAR
View
Returns within 7 days
B+
Retailer 12
-
$5,120 USD
View
Returns within 30 days
B+
Retailer 13
-
$5,433 USD
£4,278 GBP
View
B
Retailer 14
-
$5,782 USD
View
Returns within 30 days
B+
Retailer 15
-
$6,351 USD
SGD 8,583 SGD
View
Returns within 14 days
Most Expensive
B
Taylor and Hart
Y9RBHW7 · Oct 27
$6,670 USD
View
Returns within 90 days
15 more retailers have this diamond
Prices start from $1,834 USDSave up to $4,836 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
2.57ct Cushion
$1,834 USD