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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 $290 AUD
As of November 4, 2026
Save $1,481 AUD (84%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,771 AUD at Brilliant Earth · As of November 4, 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 November 4, 2026, with prices from $290 to $1,771, a $1,481 spread on the same certified stone. Brilliant Earth lists it at $1,771. 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
Colour
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $1,600 AUD|Low: $290 AUD|High: $2,500 AUD|Avg: $987 AUD|-36.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 11$290 AUD
Retailer 9$431 AUD
Retailer 2$570 AUD
Retailer 10$579 AUD
Retailer 8$693 AUD
Retailer 7$723 AUD
Retailer 5$816 AUD
Retailer 3$1,107 AUD
Retailer 6$1,271 AUD
Retailer 4$1,494 AUD
Brilliant Earth$1,600 AUD

45 data points across 11 retailers

12 retailers$290 AUD to $1,771 AUD

A
Cheapest Retailer
-
$290 AUD
Final sale: no returns
B+
Retailer 2
-
$431 AUD
View
A
Retailer 3
-
$570 AUD
View
A
Retailer 4
-
$579 AUD
View
A
Retailer 5
-
$693 AUD
View
Retailer 6
-
$723 AUD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$816 AUD
View
B+
Retailer 8
-
$1,107 AUD
View
B+
Retailer 9
-
$1,271 AUD
View
B
Retailer 10
-
$1,494 AUD
View
B
Retailer 11
-
$1,600 AUD
View
Most Expensive
B
Brilliant Earth
15296218A · Nov 4
$1,771 AUD
$1,240 USD
View
11 more retailers have this diamond
Prices start from $290 AUDSave up to $1,481 AUD

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
$290 AUD