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Asscher|Lab Grown|IGI

1.00ct D FL Asscher Lab Grown Diamond

EX • D/FL • IGI LG786644992

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG786644992

Diamond specifications and retailer prices

From £278 GBP
$373 USD
As of October 30, 2026
Save £1,707 GBP (86%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,985 GBP at Brilliant Earth · As of October 31, 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 top-tier cut grade and certified by IGI LG786644992 or 786644992. Listed at 20 retailers as of October 30, 2026, with prices from £278 to £1,985, a £1,707 spread on the same certified stone. Brilliant Earth lists it at £1,985. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle46°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786644992
Dimensions5.45 × 5.43 × 3.74 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
5.45 mm5.43 mm1.00 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786644992
Side View
Table 67.0%Crown 36.3°Girdle: Slightly ThickPavilion 46°Culet: NoneDepth 68.9%

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: £1,985 GBP|Low: £222 GBP|High: £1,985 GBP|Avg: £722 GBP
Brilliant Earth
Retailer 2
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Retailer 20
November 1, 2026
Retailer 3£278 GBP
Retailer 8£311 GBP
Retailer 5£323 GBP
Retailer 17£346 GBP
Retailer 20£346 GBP
Retailer 18£382 GBP
Retailer 7£448 GBP
Retailer 15£459 GBP
Retailer 4£464 GBP
Retailer 11£519 GBP
Retailer 13£548 GBP
Retailer 14£594 GBP
Retailer 2£619 GBP
Retailer 6£864 GBP
Retailer 12£918 GBP
Retailer 19£1,111 GBP
Retailer 10£1,140 GBP
Retailer 9£1,304 GBP
Retailer 16£1,352 GBP
Brilliant Earth£1,985 GBP

42 data points across 20 retailers

20 retailers£278 GBP to £1,985 GBP

A
Cheapest Retailer
-
£278 GBP
$373 USD
Retailer 2
-
£311 GBP
$417 USD
View
Price last confirmed 11 days ago
Final sale: no returns
A
Retailer 3
-
£323 GBP
$433 USD
View
A
Retailer 4
-
£346 GBP
$463 USD
View
A
Retailer 5
-
£346 GBP
$463 USD
View
A
Retailer 6
-
£382 GBP
HK$4,000 HKD
View
A
Retailer 7
-
£448 GBP
$600 USD
View
B+
Retailer 8
-
£459 GBP
$615 USD
View
A
Retailer 9
-
£464 GBP
$622 USD
View
B+
Retailer 10
-
£519 GBP
$695 USD
View
B+
Retailer 11
-
£548 GBP
€699 EUR
View
B+
Retailer 12
-
£594 GBP
ZAR 12,852 ZAR
View
B+
Retailer 13
-
£619 GBP
View
B
Retailer 14
-
£864 GBP
$1,157 USD
View
B
Retailer 15
-
£918 GBP
SGD 1,663 SGD
View
B
Retailer 16
-
£1,111 GBP
$1,488 USD
View
B
Retailer 17
-
£1,140 GBP
$1,527 USD
View
B
Retailer 18
-
£1,304 GBP
$1,747 USD
View
B
Retailer 19
-
£1,352 GBP
View
Most Expensive
B
Brilliant Earth
20880054A · Oct 31
£1,985 GBP
$2,660 USD
View
19 more retailers have this diamond
Prices start from £278 GBPSave up to £1,707 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
£278 GBP