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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 $3,265 NZD
$1,834 USD
As of October 28, 2026
Save $8,610 NZD (73%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $11,876 NZD at Taylor and Hart · As of October 30, 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 28, 2026, with prices from $3,265 to $11,876, a $8,610 spread on the same certified stone. Taylor and Hart lists it at $11,876. 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: $3,431 NZD|Low: $3,265 NZD|High: $12,769 NZD|Avg: $6,962 NZD|-1.0%
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 30, 2026
Retailer 2$3,265 NZD
Retailer 3$3,383 NZD
Retailer 1$3,431 NZD
Retailer 13$3,686 NZD
Retailer 5$3,835 NZD
Retailer 8$4,793 NZD
Retailer 10$4,839 NZD
Retailer 4$5,219 NZD
Retailer 6$7,001 NZD
Retailer 12$8,043 NZD
Retailer 9$8,727 NZD
Retailer 15$9,116 NZD
Retailer 11$9,674 NZD
Retailer 14$10,294 NZD
Retailer 7$11,309 NZD
Taylor and Hart$11,876 NZD

41 data points across 16 retailers

16 retailers$3,265 NZD to $11,876 NZD

A
Cheapest Retailer
-
$3,265 NZD
$1,834 USD
Final sale: no returns
Retailer 2
-
$3,383 NZD
$1,900 USD
View
Price last confirmed 17 days ago
A
Retailer 3
-
$3,431 NZD
£1,517 GBP
View
A
Retailer 4
-
$3,686 NZD
$2,070 USD
View
A
Retailer 5
-
$3,835 NZD
$2,154 USD
View
A
Retailer 6
-
$4,793 NZD
£2,120 GBP
View
A
Retailer 7
-
$4,839 NZD
$2,718 USD
View
A
Retailer 8
-
$5,219 NZD
$2,931 USD
View
B+
Retailer 9
-
$7,001 NZD
£3,096 GBP
View
Retailer 10
-
$8,043 NZD
A$6,950 AUD
View
Price last confirmed 7 days ago
B+
Retailer 11
-
$8,727 NZD
ZAR 79,185 ZAR
View
B+
Retailer 12
-
$9,116 NZD
$5,120 USD
View
B+
Retailer 13
-
$9,674 NZD
£4,278 GBP
View
B
Retailer 14
-
$10,294 NZD
$5,782 USD
View
B+
Retailer 15
-
$11,309 NZD
SGD 8,583 SGD
View
Most Expensive
B
Taylor and Hart
Y9RBHW7 · Oct 30
$11,876 NZD
$6,670 USD
View
15 more retailers have this diamond
Prices start from $3,265 NZDSave up to $8,610 NZD

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
$3,265 NZD