Asscher|Lab Grown|IGI

0.99ct E SI1 Asscher Lab Grown Diamond

ID • E/SI1 • IGI LG784679976

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG784679976

Diamond specifications and retailer prices

From $135 USD
As of October 27, 2026
Save $852 USD (86%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,407 USD at MOH London · As of October 21, 2026
View at MOH London

About this 0.99ct lab-grown asscher diamond

This 0.99ct lab-grown asscher sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG784679976 or 784679976. Listed at 18 retailers as of October 27, 2026, with a 631% 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

0.99
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31°
Pavilion angle42.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784679976
Dimensions5.69 × 5.59 × 3.68 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
5.69 mm5.59 mm0.99 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784679976
Side View
Table 68.0%Crown 31°Girdle: MediumPavilion 42.8°Culet: NoneDepth 65.8%

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: Oct 27
Current: $1,407 USD|Low: $130 USD|High: $1,416 USD|Avg: $404 USD|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 29, 2026
Retailer 15$135 USD
Retailer 13$162 USD
Retailer 7$168 USD
Retailer 8$171 USD
Retailer 11$222 USD
Retailer 9$283 USD
Retailer 10$295 USD
Retailer 6$315 USD
Retailer 12$318 USD
Retailer 14$429 USD
Retailer 3$460 USD
Retailer 5$539 USD
Retailer 2$605 USD
Retailer 4$850 USD
MOH London$1,407 USD

35 data points across 15 retailers

18 retailers$135 USD to $987 USD

A
Cheapest Retailer
-
$135 USD
A
Retailer 2
-
$157 USD
View
A
Retailer 3
-
$162 USD
View
Final sale: no returns
A
Retailer 4
-
$168 USD
View
A
Retailer 5
-
$171 USD
View
A
Retailer 6
-
$222 USD
£175 GBP
View
A
Retailer 7
-
$283 USD
£223 GBP
View
A
Retailer 8
-
$295 USD
€281 EUR
View
A
Retailer 9
-
$315 USD
View
A
Retailer 10
-
$318 USD
£251 GBP
View
B+
Retailer 11
-
$429 USD
View
B+
Retailer 12
-
$460 USD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
$488 USD
View
B+
Retailer 14
-
$539 USD
View
B
Retailer 15
-
$605 USD
View
B
Retailer 16
-
$850 USD
View
B
Retailer 17
-
$987 USD
View
Most Expensive
B
MOH London
LG784679976 · Oct 21
$1,407 USD
£1,108 GBP
View
Price last confirmed 8 days ago
17 more retailers have this diamond
Prices start from $135 USDSave up to $852 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
0.99ct Asscher
$135 USD