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Asscher|Lab Grown|IGI

1.23ct E SI1 Asscher Lab Grown Diamond

EX • E/SI1 • IGI LG784623339

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG784623339

Diamond specifications and retailer prices

From $646 AUD
CA$630 CAD
As of October 30, 2026
Save $208 AUD (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $854 AUD at The Diamond Guys · As of October 31, 2026
View at The Diamond Guys

About this 1.23ct lab-grown asscher diamond

This 1.23ct lab-grown asscher sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG784623339 or 784623339. Listed at 2 retailers as of October 30, 2026, with prices from $646 to $854, a $208 spread on the same certified stone. The Diamond Guys lists it at $854. 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

1.23
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.8°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784623339
Dimensions5.87 × 5.78 × 4.00 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.87 mm5.78 mm1.23 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784623339
Side View
Table 64.0%Crown 38.8°Girdle: MediumPavilion 40.4°Culet: NoneDepth 69.2%

Caratlytics Score

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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: Oct 30
Current: $646 AUD|Low: $148 AUD|High: $1,666 AUD|Avg: $593 AUD|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
The Diamond Guys
August 3, 2026
Retailer 5$387 AUD
Retailer 8$404 AUD
Retailer 4$532 AUD
Retailer 1$646 AUD
Retailer 3$655 AUD
Retailer 7$829 AUD
The Diamond Guys$854 AUD
Retailer 6$941 AUD
Retailer 2$1,666 AUD

40 data points across 9 retailers

2 retailers$646 AUD to $854 AUD

B+
Cheapest Retailer
-
$646 AUD
CA$630 CAD
Most Expensive
B
The Diamond Guys
1958044671 · Oct 31
$854 AUD
$600 USD
View
1 more retailer has this diamond
Prices start from $646 AUDSave up to $208 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.

B+
1.23ct Asscher
$646 AUD