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Asscher|Lab Grown|IGI

1.51ct E SI1 Asscher Lab Grown Diamond

ID • E/SI1 • IGI LG566312785

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG566312785

Diamond specifications and retailer prices

From $1,277 NZD
As of November 4, 2026
Save $270 NZD (17%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,548 NZD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

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 LG566312785 or 566312785. Listed at 2 retailers as of November 4, 2026, with prices from $1,277 to $1,548, a $270 spread on the same certified stone. Diamond Quarter lists it at $1,548. 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 angle40.4°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG566312785
Dimensions6.22 × 6.18 × 4.11 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.22 mm6.18 mm1.51 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG566312785
Side View
Table 67.0%Crown 40.4°Girdle: MediumPavilion 37.6°Culet: NoneDepth 66.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $1,277 NZD|Low: $854 NZD|High: $3,558 NZD|Avg: $1,994 NZD|+4.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
September 23, 2026
Retailer 4$854 NZD
Retailer 8$1,103 NZD
Retailer 1$1,277 NZD
Retailer 6$1,567 NZD
Retailer 3$1,651 NZD
Retailer 10$1,750 NZD
Retailer 7$2,190 NZD
Retailer 9$2,275 NZD
Retailer 2$3,255 NZD
Retailer 5$3,558 NZD

34 data points across 10 retailers

2 retailers$1,277 NZD to $1,548 NZD

B+
Cheapest Retailer
-
$1,277 NZD
Most Expensive
B
Diamond Quarter
1.51SI1ELG859F77N · Nov 5
$1,548 NZD
£685 GBP
View
1 more retailer has this diamond
Prices start from $1,277 NZDSave up to $270 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.

B+
1.51ct Asscher
$1,277 NZD