Asscher|Lab Grown|IGI

1.00ct D SI1 Asscher Lab Grown Diamond

ID • D/SI1 • IGI LG838660979

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG838660979

Diamond specifications and retailer prices

From $164 USD
As of November 4, 2026
Save $526 USD (76%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $951 USD at MOH London · As of October 26, 2026
View at MOH London

About this 1ct lab-grown asscher diamond

This 1ct lab-grown asscher sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG838660979 or 838660979. Listed at 9 retailers as of November 4, 2026, with a 321% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.00
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838660979
Dimensions5.43 × 5.40 × 3.74 mm
L/W Ratio1.01
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.43 mm5.40 mm1.00 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838660979
Side View
Table 60.0%Crown 34.8°Girdle: ThickPavilion 39.9°Culet: NoneDepth 69.3%

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: $951 USD|Low: $157 USD|High: $961 USD|Avg: $493 USD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 25, 2026
Retailer 4$164 USD
Retailer 9$190 USD
Retailer 2$230 USD
Retailer 8$366 USD
Retailer 6$505 USD
Retailer 5$557 USD
Retailer 7$653 USD
Retailer 3$690 USD
MOH London$951 USD

15 data points across 9 retailers

9 retailers$164 USD to $690 USD

A
Cheapest Retailer
-
$164 USD
A
Retailer 2
-
$190 USD
View
A
Retailer 3
-
$230 USD
View
B+
Retailer 4
-
$366 USD
View
B
Retailer 5
-
$505 USD
View
B+
Retailer 6
-
$557 USD
View
B
Retailer 7
-
$653 USD
View
B
Retailer 8
-
$690 USD
View
Most Expensive
MOH London
LG838660979 · Oct 26
$951 USD
£749 GBP
View
Price last confirmed 10 days ago
8 more retailers have this diamond
Prices start from $164 USDSave up to $526 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
1.00ct Asscher
$164 USD