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Asscher|Lab Grown|IGI

1.55ct E SI1 Asscher Lab Grown Diamond

ID • E/SI1 • IGI LG508137596

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG508137596

Diamond specifications and retailer prices

From $203 USD
As of November 1, 2026
Save $1,037 USD (84%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,240 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.55ct lab-grown asscher diamond

This 1.55ct lab-grown asscher sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG508137596 or 508137596. Listed at 12 retailers as of October 31, 2026, with prices from $203 to $1,240, a $1,037 spread on the same certified stone. Brilliant Earth lists it at $1,240. 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

1.55
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle16.5°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG508137596
Dimensions6.38 × 6.33 × 4.08 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
6.38 mm6.33 mm1.55 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG508137596
Side View
Table 64.0%Crown 16.5°Girdle: MediumPavilion 39.4°Culet: NoneDepth 64.5%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $1,120 USD|Low: $203 USD|High: $1,810 USD|Avg: $732 USD|-38.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 11$203 USD
Retailer 9$302 USD
Retailer 5$405 USD
Retailer 10$405 USD
Retailer 8$485 USD
Retailer 7$506 USD
Retailer 6$563 USD
Retailer 3$776 USD
Retailer 2$890 USD
Retailer 4$1,049 USD
Brilliant Earth$1,120 USD

42 data points across 11 retailers

12 retailers$203 USD to $1,240 USD

A
Cheapest Retailer
-
$203 USD
Final sale: no returns
B+
Retailer 2
-
$302 USD
View
A
Retailer 3
-
$405 USD
£319 GBP
View
A
Retailer 4
-
$405 USD
£319 GBP
View
A
Retailer 5
-
$485 USD
View
A
Retailer 6
-
$506 USD
€482 EUR
View
A
Retailer 7
-
$563 USD
View
B+
Retailer 8
-
$776 USD
View
B+
Retailer 9
-
$890 USD
View
B
Retailer 10
-
$1,049 USD
£826 GBP
View
B
Retailer 11
-
$1,120 USD
View
Most Expensive
B
Brilliant Earth
15296218A · Oct 31
$1,240 USD
View
11 more retailers have this diamond
Prices start from $203 USDSave up to $1,037 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
1.55ct Asscher
$203 USD