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Asscher|Lab Grown|IGI

1.37ct D IF Asscher Lab Grown Diamond

ID • D/IF • IGI LG800624590

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG800624590

Diamond specifications and retailer prices

From £381 GBP
$511 USD
As of November 1, 2026
Save £527 GBP (58%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £2,757 GBP at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 1.37ct lab-grown asscher diamond

This 1.37ct lab-grown asscher sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800624590 or 800624590. Listed at 5 retailers as of November 1, 2026, with a 138% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.37
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.1°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800624590
Dimensions6.07 × 6.06 × 4.17 mm
L/W Ratio1.00
Culet sizePointed
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
6.07 mm6.06 mm1.37 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800624590
Side View
Table 61.0%Crown 38.1°Girdle: MediumPavilion 38°Culet: NoneDepth 68.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £2,757 GBP|Low: £366 GBP|High: £2,847 GBP|Avg: £884 GBP|-3.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 4£381 GBP
Retailer 5£404 GBP
Retailer 3£408 GBP
Retailer 6£445 GBP
Retailer 7£470 GBP
Retailer 9£880 GBP
Retailer 2£908 GBP
Retailer 8£1,291 GBP
Brilliant Earth£2,757 GBP

23 data points across 9 retailers

5 retailers£381 GBP to £908 GBP

A
Cheapest Retailer
-
£381 GBP
$511 USD
Retailer 2
-
£404 GBP
€516 EUR
View
Price last confirmed 8 days ago
A
Retailer 3
-
£408 GBP
$548 USD
View
B+
Retailer 4
-
£908 GBP
View
Most Expensive
Brilliant Earth
19835405A · Oct 26
£2,757 GBP
$3,700 USD
View
Price last confirmed 7 days ago
4 more retailers have this diamond
Prices start from £381 GBPSave up to £527 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
1.37ct Asscher
£381 GBP