Asscher|Lab Grown|IGI

1.23ct D VVS1 Asscher Lab Grown Diamond

ID • D/VVS1 • IGI LG803604829

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG803604829

Diamond specifications and retailer prices

From £302 GBP
$404 USD
As of October 30, 2026
Save £885 GBP (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,187 GBP at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 1.23ct lab-grown asscher diamond

This 1.23ct lab-grown asscher sits in the classic one-carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG803604829 or 803604829. Listed at 5 retailers as of October 26, 2026, with prices from £302 to £1,187, a £885 spread on the same certified stone. Brilliant Earth lists it at £1,187. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
D
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle44.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803604829
Dimensions5.96 × 5.95 × 4.03 mm
L/W Ratio1.00
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
5.96 mm5.95 mm1.23 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803604829
Side View
Table 70.0%Crown 32.9°Girdle: Slightly ThickPavilion 44.1°Culet: NoneDepth 67.7%

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 30
Current: £1,187 GBP|Low: £290 GBP|High: £1,187 GBP|Avg: £543 GBP|+6.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 5£302 GBP
Retailer 6£330 GBP
Retailer 3£343 GBP
Retailer 4£356 GBP
Retailer 7£360 GBP
Retailer 9£597 GBP
Retailer 8£664 GBP
Retailer 2£804 GBP
Brilliant Earth£1,187 GBP

22 data points across 9 retailers

5 retailers£302 GBP to £1,187 GBP

A
Cheapest Retailer
-
£302 GBP
$404 USD
A
Retailer 2
-
£343 GBP
€438 EUR
View
A
Retailer 3
-
£356 GBP
$477 USD
View
B
Retailer 4
-
£804 GBP
View
Most Expensive
B
Brilliant Earth
19834934A · Oct 26
£1,187 GBP
$1,590 USD
View
4 more retailers have this diamond
Prices start from £302 GBPSave up to £885 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
1.23ct Asscher
£302 GBP