Asscher|Lab Grown|IGI

2.57ct D SI2 Asscher Lab Grown Diamond

ID • D/SI2 • IGI LG700572092

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG700572092

Diamond specifications and retailer prices

From £338 GBP
$450 USD
As of October 27, 2026
Save £1,011 GBP (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,349 GBP at NZ Jewellers · As of October 29, 2026
View at NZ Jewellers

About this 2.57ct lab-grown asscher diamond

This 2.57ct lab-grown asscher sits in the two to three carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG700572092 or 700572092. Listed at 9 retailers as of October 27, 2026, with prices from £338 to £1,349, a £1,011 spread on the same certified stone. NZ Jewellers lists it at £1,349. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.57
Carat
D
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700572092
Dimensions7.56 × 7.53 × 5.12 mm
L/W Ratio1.00
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.56 mm7.53 mm2.57 ctD / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700572092
Side View
Table 64.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 68.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: £1,349 GBP|Low: £338 GBP|High: £2,767 GBP|Avg: £1,091 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 12£338 GBP
Retailer 11£379 GBP
Retailer 7£420 GBP
Retailer 9£461 GBP
Retailer 2£539 GBP
Retailer 8£633 GBP
Retailer 13£639 GBP
Retailer 10£657 GBP
Retailer 6£694 GBP
NZ Jewellers£1,349 GBP
Retailer 5£1,924 GBP
Retailer 3£2,591 GBP
Retailer 4£2,767 GBP

4 data points across 13 retailers

9 retailers£338 GBP to £1,349 GBP

A
Cheapest Retailer
-
£338 GBP
$450 USD
A
Retailer 2
-
£379 GBP
$505 USD
View
A
Retailer 3
-
£420 GBP
$559 USD
View
A
Retailer 4
-
£461 GBP
HK$4,800 HKD
View
A
Retailer 5
-
£539 GBP
View
B+
Retailer 6
-
£633 GBP
$843 USD
View
B+
Retailer 7
-
£657 GBP
$875 USD
View
B+
Retailer 8
-
£694 GBP
View
Most Expensive
B
NZ Jewellers
d9c95d0f-7636-4f8c-b86d-5c49e38fadff · Oct 29
£1,349 GBP
$1,796 USD
View
8 more retailers have this diamond
Prices start from £338 GBPSave up to £1,011 GBP

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 Asscher
£338 GBP