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Asscher|Lab Grown|IGI

0.51ct D IF Asscher Lab Grown Diamond

GD • D/IF • IGI LG658470934

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG658470934

Diamond specifications and retailer prices

From £118 GBP
$159 USD
As of November 2, 2026
Save £427 GBP (78%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £546 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 standard cut grade and certified by IGI LG658470934 or 658470934. Listed at 2 retailers as of November 2, 2026, with prices from £118 to £546, a £427 spread on the same certified stone. Diamond Quarter lists it at £546. 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
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG658470934
Dimensions4.43 × 4.35 × 2.92 mm
L/W Ratio1.02
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
4.43 mm4.35 mm0.51 ctD / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG658470934
Side View
Table 63.0%Crown 35.8°Girdle: MediumPavilion 41.2°Culet: NoneDepth 67.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: £118 GBP|Low: £93 GBP|High: £785 GBP|Avg: £374 GBP|+21.4%
Retailer 1
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Retailer 5
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Retailer 11
September 27, 2026
Retailer 1£118 GBP
Retailer 5£247 GBP
Retailer 11£253 GBP
Retailer 10£310 GBP
Retailer 2£333 GBP
Retailer 7£346 GBP
Retailer 4£362 GBP
Retailer 8£405 GBP
Retailer 9£495 GBP
Retailer 6£529 GBP
Retailer 3£785 GBP

77 data points across 11 retailers

2 retailers£118 GBP to £546 GBP

A
Cheapest Retailer
-
£118 GBP
$159 USD
Final sale: no returns
Most Expensive
B
Diamond Quarter
0.51IFDLG34325DN · Nov 2
£546 GBP
View
1 more retailer has this diamond
Prices start from £118 GBPSave up to £427 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