Asscher|Lab Grown|IGI

1.51ct D IF Asscher Lab Grown Diamond

VG • D/IF • IGI LG620421805

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG620421805

Diamond specifications and retailer prices

From $312 USD
As of October 30, 2026
Save $2,658 USD (89%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,970 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG620421805 or 620421805. Listed at 20 retailers as of October 30, 2026, with prices from $312 to $2,970, a $2,658 spread on the same certified stone. Brilliant Earth lists it at $2,970. 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

1.51
Carat
D
Color
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620421805
Dimensions6.24 × 6.19 × 4.21 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
6.24 mm6.19 mm1.51 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620421805
Side View
Table 65.0%Crown 37.8°Girdle: Slightly ThickPavilion 39.6°Culet: NoneDepth 68.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $2,970 USD|Low: $312 USD|High: $2,970 USD|Avg: $889 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 1, 2026
Retailer 7$312 USD
Retailer 2$366 USD
Retailer 9$370 USD
Retailer 3$465 USD
Retailer 5$505 USD
Retailer 14$568 USD
Retailer 4$594 USD
Retailer 16$607 USD
Retailer 10$609 USD
Retailer 17$804 USD
Retailer 12$883 USD
Retailer 6$1,002 USD
Retailer 13$1,079 USD
Retailer 8$1,162 USD
Retailer 11$1,233 USD
Retailer 15$1,393 USD
Brilliant Earth$2,970 USD

31 data points across 17 retailers

20 retailers$312 USD to $2,970 USD

A
Cheapest Retailer
-
$312 USD
Final sale: no returns
A
Retailer 2
-
$366 USD
£288 GBP
View
A
Retailer 3
-
$370 USD
View
A
Retailer 4
-
$465 USD
View
A
Retailer 5
-
$505 USD
View
A
Retailer 6
-
$568 USD
€541 EUR
View
A
Retailer 7
-
$594 USD
ZAR 9,595 ZAR
View
A
Retailer 8
-
$607 USD
View
A
Retailer 9
-
$609 USD
£480 GBP
View
A
Retailer 10
-
$804 USD
A$1,237 AUD
View
A
Retailer 11
-
$883 USD
View
B+
Retailer 12
-
$1,002 USD
View
B+
Retailer 13
-
$1,079 USD
View
B+
Retailer 14
-
$1,162 USD
View
B+
Retailer 15
-
$1,233 USD
View
Retailer 16
-
$1,387 USD
A$2,134 AUD
View
Price last confirmed 145 days ago
B+
Retailer 17
-
$1,393 USD
£1,097 GBP
View
Retailer 18
-
$1,433 USD
£1,128 GBP
View
Price last confirmed 27 days ago
B
Retailer 19
-
$2,970 USD
View
Most Expensive
B
Brilliant Earth
14228094A · Oct 31
$2,970 USD
View
19 more retailers have this diamond
Prices start from $312 USDSave up to $2,658 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.

A
1.51ct Asscher
$312 USD