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Asscher|Lab Grown|IGI

1.51ct D SI1 Asscher Lab Grown Diamond

ID • D/SI1 • IGI LG529266595

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG529266595

Diamond specifications and retailer prices

From $381 USD
As of November 1, 2026
Save $880 USD (70%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,261 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct lab-grown asscher diamond

This 1.51ct lab-grown asscher sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG529266595 or 529266595. Listed at 4 retailers as of November 1, 2026, with prices from $381 to $1,261, a $880 spread on the same certified stone. MOH London lists it at $1,261. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle28.4°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG529266595
Dimensions6.33 × 6.23 × 4.04 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
6.33 mm6.23 mm1.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG529266595
Side View
Table 61.5%Crown 28.4°Girdle: Slightly ThickPavilion 39.1°Culet: NoneDepth 64.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: $1,261 USD|Low: $381 USD|High: $1,322 USD|Avg: $804 USD|-3.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 4$381 USD
Retailer 5$531 USD
Retailer 2$600 USD
Retailer 3$1,182 USD
MOH London$1,261 USD

37 data points across 5 retailers

4 retailers$381 USD to $1,261 USD

B+
Cheapest Retailer
-
$381 USD
B+
Retailer 2
-
$600 USD
£472 GBP
View
B
Retailer 3
-
$1,182 USD
View
Most Expensive
B
MOH London
LG529266595 · Nov 1
$1,261 USD
£993 GBP
View
3 more retailers have this diamond
Prices start from $381 USDSave up to $880 USD

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.

B+
1.51ct Asscher
$381 USD