Asscher|Lab Grown|IGI

1.50ct D SI1 Asscher Lab Grown Diamond

ID • D/SI1 • IGI LG517289274

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG517289274

Diamond specifications and retailer prices

From $209 USD
As of November 1, 2026
Save $1,021 USD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,230 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.5ct lab-grown asscher diamond

This 1.5ct 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 LG517289274 or 517289274. Listed at 13 retailers as of October 31, 2026, with prices from $209 to $1,230, a $1,021 spread on the same certified stone. Brilliant Earth lists it at $1,230. 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

1.50
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle26°
Pavilion angle45°
OriginLab Grown
Grading LabIGI
CertificateIGI LG517289274
Dimensions6.40 × 6.29 × 4.19 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
6.40 mm6.29 mm1.50 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG517289274
Side View
Table 64.0%Crown 26°Girdle: MediumPavilion 45°Culet: NoneDepth 66.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $1,230 USD|Low: $209 USD|High: $1,580 USD|Avg: $659 USD|-22.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 11$209 USD
Retailer 4$271 USD
Retailer 9$312 USD
Retailer 10$418 USD
Retailer 2$419 USD
Retailer 8$489 USD
Retailer 7$494 USD
Retailer 6$584 USD
Retailer 12$798 USD
Retailer 5$930 USD
Retailer 3$1,088 USD
Brilliant Earth$1,230 USD

43 data points across 12 retailers

13 retailers$209 USD to $1,230 USD

A
Cheapest Retailer
-
$209 USD
Final sale: no returns
Retailer 2
-
$271 USD
View
Price last confirmed 7 days ago
B+
Retailer 3
-
$312 USD
View
A
Retailer 4
-
$418 USD
£329 GBP
View
A
Retailer 5
-
$419 USD
£330 GBP
View
A
Retailer 6
-
$489 USD
View
A
Retailer 7
-
$494 USD
€470 EUR
View
B+
Retailer 8
-
$584 USD
View
B+
Retailer 9
-
$798 USD
View
B
Retailer 10
-
$930 USD
View
B
Retailer 11
-
$1,088 USD
£857 GBP
View
B
Retailer 12
-
$1,230 USD
View
Most Expensive
B
Brilliant Earth
15296613A · Oct 31
$1,230 USD
View
12 more retailers have this diamond
Prices start from $209 USDSave up to $1,021 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
1.50ct Asscher
$209 USD