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 £104 GBP
$138 USD
As of October 30, 2026
Save £644 GBP (86%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,057 GBP 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 30, 2026, with a 621% 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
Colour
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,057 GBP|Low: £98 GBP|High: £1,063 GBP|Avg: £328 GBP|-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 30, 2026
Retailer 2£104 GBP
Retailer 8£125 GBP
Retailer 15£128 GBP
Retailer 11£170 GBP
Retailer 13£219 GBP
Retailer 3£222 GBP
Retailer 9£240 GBP
Retailer 12£244 GBP
Retailer 4£322 GBP
Retailer 5£345 GBP
Retailer 7£405 GBP
Retailer 14£454 GBP
Retailer 6£638 GBP
Retailer 10£747 GBP
MOH London£1,057 GBP

33 data points across 15 retailers

18 retailers£104 GBP to £747 GBP

A
Cheapest Retailer
-
£104 GBP
$138 USD
A
Retailer 2
-
£118 GBP
$157 USD
View
A
Retailer 3
-
£125 GBP
$166 USD
View
Final sale: no returns
A
Retailer 4
-
£126 GBP
$168 USD
View
A
Retailer 5
-
£128 GBP
$171 USD
View
A
Retailer 6
-
£170 GBP
View
A
Retailer 7
-
£219 GBP
View
A
Retailer 8
-
£222 GBP
€281 EUR
View
A
Retailer 9
-
£240 GBP
$319 USD
View
A
Retailer 10
-
£244 GBP
View
B+
Retailer 11
-
£322 GBP
$429 USD
View
Retailer 12
-
£345 GBP
$460 USD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
£366 GBP
$488 USD
View
B+
Retailer 14
-
£405 GBP
$539 USD
View
B
Retailer 15
-
£454 GBP
$605 USD
View
B
Retailer 16
-
£638 GBP
$850 USD
View
B
Retailer 17
-
£747 GBP
$995 USD
View
Most Expensive
MOH London
LG784679976 · Oct 21
£1,057 GBP
View
Price last confirmed 9 days ago
17 more retailers have this diamond
Prices start from £104 GBPSave up to £644 GBP

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
£104 GBP