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Asscher|Lab Grown|IGI

0.51ct D IF Asscher Lab Grown Diamond

VG • D/IF • IGI LG662464535

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG662464535

Diamond specifications and retailer prices

From £118 GBP
$159 USD
As of October 31, 2026
Save £466 GBP (80%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £585 GBP at Diamond Quarter · As of November 2, 2026
View at Diamond Quarter

About this 0.51ct lab-grown asscher diamond

This 0.51ct lab-grown asscher sits in the half to three-quarter carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG662464535 or 662464535. Listed at 2 retailers as of October 31, 2026, with prices from £118 to £585, a £466 spread on the same certified stone. Diamond Quarter lists it at £585. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG662464535
Dimensions4.40 × 4.37 × 3.00 mm
L/W Ratio1.01
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
4.40 mm4.37 mm0.51 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG662464535
Side View
Table 66.0%Crown 37.6°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 68.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: £118 GBP|Low: £93 GBP|High: £785 GBP|Avg: £386 GBP|+21.4%
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September 28, 2026
Retailer 1£118 GBP
Retailer 9£239 GBP
Retailer 10£247 GBP
Retailer 8£253 GBP
Retailer 11£302 GBP
Retailer 13£346 GBP
Retailer 3£352 GBP
Retailer 6£362 GBP
Retailer 7£373 GBP
Retailer 2£405 GBP
Retailer 4£495 GBP
Retailer 12£738 GBP
Retailer 5£785 GBP

67 data points across 13 retailers

2 retailers£118 GBP to £585 GBP

A
Cheapest Retailer
-
£118 GBP
$159 USD
Final sale: no returns
Most Expensive
B
Diamond Quarter
0.51IFDLG35E2A0N · Nov 2
£585 GBP
View
1 more retailer has this diamond
Prices start from £118 GBPSave up to £466 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
0.51ct Asscher
£118 GBP