CaratHunter
Plans
Asscher|Lab Grown|IGI

1.21ct D FL Asscher Lab Grown Diamond

VG • D/FL • IGI LG831684504

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG831684504

Diamond specifications and retailer prices

From £328 GBP
$440 USD
As of October 30, 2026
Save £2,067 GBP (86%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £2,396 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.21ct lab-grown asscher diamond

This 1.21ct lab-grown asscher sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG831684504 or 831684504. Listed at 9 retailers as of October 30, 2026, with prices from £328 to £2,396, a £2,067 spread on the same certified stone. Brilliant Earth lists it at £2,396. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.1°
Pavilion angle43.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831684504
Dimensions5.84 × 5.70 × 3.87 mm
L/W Ratio1.02
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
5.84 mm5.70 mm1.21 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831684504
Side View
Table 63.0%Crown 31.1°Girdle: MediumPavilion 43.4°Culet: NoneDepth 67.9%

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: £2,396 GBP|Low: £328 GBP|High: £2,396 GBP|Avg: £846 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 4£328 GBP
Retailer 7£328 GBP
Retailer 8£376 GBP
Retailer 3£474 GBP
Retailer 6£578 GBP
Retailer 2£597 GBP
Retailer 5£1,021 GBP
Retailer 9£1,159 GBP
Brilliant Earth£2,396 GBP

2 data points across 9 retailers

9 retailers£328 GBP to £2,396 GBP

A
Cheapest Retailer
-
£328 GBP
$440 USD
Final sale: no returns
A
Retailer 2
-
£328 GBP
$440 USD
View
A
Retailer 3
-
£376 GBP
View
A
Retailer 4
-
£474 GBP
$635 USD
View
B+
Retailer 5
-
£578 GBP
$775 USD
View
B+
Retailer 6
-
£597 GBP
View
B
Retailer 7
-
£1,021 GBP
$1,368 USD
View
B
Retailer 8
-
£1,159 GBP
SGD 2,098 SGD
View
Most Expensive
B
Brilliant Earth
22360872A · Oct 30
£2,396 GBP
$3,210 USD
View
8 more retailers have this diamond
Prices start from £328 GBPSave up to £2,067 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
1.21ct Asscher
£328 GBP