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Asscher|Lab Grown|IGI

1.51ct E SI1 Asscher Lab Grown Diamond

ID • E/SI1 • IGI LG516243211

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG516243211

Diamond specifications and retailer prices

From $352 NZD
As of November 4, 2026
Save $1,587 NZD (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,939 NZD at Brilliant Earth · As of November 4, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG516243211 or 516243211. Listed at 12 retailers as of November 4, 2026, with prices from $352 to $1,939, a $1,587 spread on the same certified stone. Brilliant Earth lists it at $1,939. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle27.4°
Pavilion angle43.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG516243211
Dimensions6.34 × 6.21 × 4.21 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
6.34 mm6.21 mm1.51 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG516243211
Side View
Table 60.5%Crown 27.4°Girdle: MED-STKPavilion 43.1°Culet: NoneDepth 67.8%

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 4
Current: $1,939 NZD|Low: $352 NZD|High: $2,152 NZD|Avg: $1,074 NZD|-9.9%
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 10$352 NZD
Retailer 3$486 NZD
Retailer 8$525 NZD
Retailer 2$692 NZD
Retailer 9$704 NZD
Retailer 7$852 NZD
Retailer 6$879 NZD
Retailer 4$989 NZD
Retailer 11$1,350 NZD
Retailer 5$1,825 NZD
Brilliant Earth$1,939 NZD

45 data points across 11 retailers

12 retailers$352 NZD to $1,939 NZD

A
Cheapest Retailer
-
$352 NZD
Final sale: no returns
Retailer 2
-
$486 NZD
View
Price last confirmed 12 days ago
B+
Retailer 3
-
$525 NZD
View
A
Retailer 4
-
$692 NZD
View
A
Retailer 5
-
$704 NZD
View
A
Retailer 6
-
$852 NZD
View
Retailer 7
-
$879 NZD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$989 NZD
View
B+
Retailer 9
-
$1,350 NZD
View
B
Retailer 10
-
$1,825 NZD
View
B
Retailer 11
-
$1,939 NZD
View
Most Expensive
B
Brilliant Earth
15295505A · Nov 4
$1,939 NZD
$1,090 USD
View
11 more retailers have this diamond
Prices start from $352 NZDSave up to $1,587 NZD

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
$352 NZD