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Asscher|Lab Grown|IGI

1.00ct D FL Asscher Lab Grown Diamond

VG • D/FL • IGI LG840617138

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG840617138

Diamond specifications and retailer prices

From £340 GBP
$456 USD
As of October 30, 2026
Save £1,645 GBP (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,985 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1ct lab-grown asscher diamond

This 1ct 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 LG840617138 or 840617138. Listed at 13 retailers as of October 30, 2026, with prices from £340 to £1,985, a £1,645 spread on the same certified stone. Brilliant Earth lists it at £1,985. 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

1.00
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840617138
Dimensions5.50 × 5.50 × 3.66 mm
L/W Ratio1.00
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
5.50 mm5.50 mm1.00 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840617138
Side View
Table 65.0%Crown 34.9°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 66.5%

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: £1,985 GBP|Low: £340 GBP|High: £1,985 GBP|Avg: £784 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 12£340 GBP
Retailer 5£390 GBP
Retailer 8£390 GBP
Retailer 9£411 GBP
Retailer 6£575 GBP
Retailer 11£599 GBP
Retailer 3£604 GBP
Retailer 2£622 GBP
Retailer 10£650 GBP
Retailer 13£1,002 GBP
Retailer 7£1,061 GBP
Retailer 4£1,484 GBP
Brilliant Earth£1,985 GBP

16 data points across 13 retailers

13 retailers£340 GBP to £1,985 GBP

A
Cheapest Retailer
-
£340 GBP
$456 USD
Final sale: no returns
Retailer 2
-
£390 GBP
$522 USD
View
Price last confirmed 14 days ago
A
Retailer 3
-
£390 GBP
View
A
Retailer 4
-
£411 GBP
HK$4,300 HKD
View
B+
Retailer 5
-
£575 GBP
$770 USD
View
B+
Retailer 6
-
£599 GBP
$802 USD
View
B+
Retailer 7
-
£604 GBP
€771 EUR
View
B+
Retailer 8
-
£622 GBP
View
B+
Retailer 9
-
£650 GBP
ZAR 14,060 ZAR
View
B
Retailer 10
-
£1,002 GBP
SGD 1,814 SGD
View
B
Retailer 11
-
£1,061 GBP
$1,421 USD
View
B
Retailer 12
-
£1,484 GBP
View
Most Expensive
B
Brilliant Earth
22132512A · Oct 30
£1,985 GBP
$2,660 USD
View
12 more retailers have this diamond
Prices start from £340 GBPSave up to £1,645 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
1.00ct Asscher
£340 GBP