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Asscher|Lab Grown|IGI

2.57ct F VS1 Asscher Lab Grown Diamond

EX • F/VS1 • IGI LG823657299

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG823657299

Diamond specifications and retailer prices

From £297 GBP
$398 USD
As of October 31, 2026
Save £128 GBP (30%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,519 GBP at Rare Carat · As of October 7, 2026
View at Rare Carat

About this 2.57ct lab-grown asscher diamond

This 2.57ct lab-grown asscher sits in the two to three carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG823657299 or 823657299. Listed at 3 retailers as of October 28, 2026, with a 43% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823657299
Dimensions7.50 × 7.44 × 5.15 mm
L/W Ratio1.01
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.50 mm7.44 mm2.57 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823657299
Side View
Table 62.0%Crown 36.4°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 69.2%

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 31
Current: £1,519 GBP|Low: £297 GBP|High: £1,537 GBP|Avg: £828 GBP|-1.2%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
October 27, 2026
Retailer 2£297 GBP
Retailer 3£425 GBP
Retailer 4£591 GBP
Rare Carat£1,519 GBP

20 data points across 4 retailers

3 retailers£297 GBP to £425 GBP

A
Cheapest Retailer
-
£297 GBP
$398 USD
Final sale: no returns
B+
Retailer 2
-
£425 GBP
$570 USD
View
Most Expensive
Rare Carat
823657299 · Oct 7
£1,519 GBP
$2,035 USD
View
Price last confirmed 24 days ago
2 more retailers have this diamond
Prices start from £297 GBPSave up to £128 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
£297 GBP