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Asscher|Lab Grown|IGI

2.57ct D IF Asscher Lab Grown Diamond

ID • D/IF • IGI LG837615621

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG837615621

Diamond specifications and retailer prices

From £937 GBP
$1,255 USD
As of October 30, 2026
Save £4,034 GBP (81%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £4,971 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG837615621 or 837615621. Listed at 20 retailers as of October 30, 2026, with prices from £937 to £4,971, a £4,034 spread on the same certified stone. Brilliant Earth lists it at £4,971. 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
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle42.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837615621
Dimensions7.49 × 7.45 × 5.05 mm
L/W Ratio1.01
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.49 mm7.45 mm2.57 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837615621
Side View
Table 66.0%Crown 32.8°Girdle: ThickPavilion 42.4°Culet: NoneDepth 67.8%

Caratlytics Score

How it works →
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 30
Current: £4,971 GBP|Low: £936 GBP|High: £4,971 GBP|Avg: £1,883 GBP
Brilliant Earth
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
October 30, 2026
Retailer 8£937 GBP
Retailer 9£1,071 GBP
Retailer 5£1,082 GBP
Retailer 14£1,118 GBP
Retailer 10£1,403 GBP
Retailer 15£1,542 GBP
Retailer 12£1,546 GBP
Retailer 2£1,644 GBP
Retailer 6£1,970 GBP
Retailer 7£2,336 GBP
Retailer 11£2,503 GBP
Retailer 4£2,673 GBP
Retailer 13£3,134 GBP
Retailer 3£3,242 GBP
Brilliant Earth£4,971 GBP

16 data points across 15 retailers

20 retailers£937 GBP to £4,971 GBP

Retailer 1
-
£874 GBP
$1,171 USD
Price last confirmed 17 days ago
A
Retailer 2
-
£937 GBP
$1,255 USD
View
Final sale: no returns
Retailer 3
-
£1,006 GBP
$1,348 USD
View
Price last confirmed 15 days ago
Retailer 4
-
£1,021 GBP
$1,368 USD
View
Price last confirmed 18 days ago
A
Retailer 5
-
£1,071 GBP
View
A
Retailer 6
-
£1,082 GBP
$1,450 USD
View
A
Retailer 7
-
£1,118 GBP
HK$11,700 HKD
View
A
Retailer 8
-
£1,403 GBP
View
A
Retailer 9
-
£1,542 GBP
$2,066 USD
View
A
Retailer 10
-
£1,546 GBP
€1,973 EUR
View
A
Retailer 11
-
£1,644 GBP
HK$17,204 HKD
View
Retailer 12
-
£1,913 GBP
$2,563 USD
View
Price last confirmed 17 days ago
A
Retailer 13
-
£1,970 GBP
$2,640 USD
View
Retailer 14
-
£2,336 GBP
A$4,815 AUD
View
Price last confirmed 8 days ago
B+
Retailer 15
-
£2,503 GBP
ZAR 54,174 ZAR
View
B+
Retailer 16
-
£2,673 GBP
View
B+
Retailer 17
-
£2,894 GBP
$3,877 USD
View
B+
Retailer 18
-
£3,134 GBP
View
B+
Retailer 19
-
£3,242 GBP
SGD 5,871 SGD
View
Most Expensive
B
Brilliant Earth
21574256A · Oct 30
£4,971 GBP
$6,660 USD
View
19 more retailers have this diamond
Prices start from £937 GBPSave up to £4,034 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
£937 GBP