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Asscher|Lab Grown|IGI

1.00ct E IF Asscher Lab Grown Diamond

ID • E/IF • IGI LG775616940

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG775616940

Diamond specifications and retailer prices

From £188 GBP
$252 USD
As of October 30, 2026
Save £969 GBP (84%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,157 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG775616940 or 775616940. Listed at 22 retailers as of October 30, 2026, with prices from £188 to £1,157, a £969 spread on the same certified stone. Brilliant Earth lists it at £1,157. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG775616940
Dimensions5.56 × 5.51 × 3.71 mm
L/W Ratio1.01
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
5.56 mm5.51 mm1.00 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG775616940
Side View
Table 66.0%Crown 36.1°Girdle: MediumPavilion 41.5°Culet: NoneDepth 67.3%

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: £1,157 GBP|Low: £184 GBP|High: £1,164 GBP|Avg: £544 GBP|-0.6%
Brilliant Earth
Retailer 2
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Retailer 21
October 31, 2026
Retailer 4£188 GBP
Retailer 14£219 GBP
Retailer 3£234 GBP
Retailer 7£234 GBP
Retailer 19£252 GBP
Retailer 20£355 GBP
Retailer 13£379 GBP
Retailer 5£391 GBP
Retailer 16£401 GBP
Retailer 10£425 GBP
Retailer 2£445 GBP
Retailer 9£471 GBP
Retailer 17£568 GBP
Retailer 18£587 GBP
Retailer 21£601 GBP
Retailer 8£751 GBP
Retailer 11£789 GBP
Retailer 12£910 GBP
Retailer 15£941 GBP
Retailer 6£1,015 GBP
Brilliant Earth£1,157 GBP

32 data points across 21 retailers

22 retailers£188 GBP to £1,157 GBP

A
Cheapest Retailer
-
£188 GBP
$252 USD
A
Retailer 2
-
£219 GBP
$293 USD
View
A
Retailer 3
-
£234 GBP
$313 USD
View
A
Retailer 4
-
£234 GBP
$313 USD
View
A
Retailer 5
-
£252 GBP
$338 USD
View
Final sale: no returns
A
Retailer 6
-
£355 GBP
$475 USD
View
A
Retailer 7
-
£379 GBP
€483 EUR
View
A
Retailer 8
-
£391 GBP
$524 USD
View
A
Retailer 9
-
£401 GBP
ZAR 8,684 ZAR
View
A
Retailer 10
-
£425 GBP
$570 USD
View
A
Retailer 11
-
£445 GBP
View
B+
Retailer 12
-
£471 GBP
$631 USD
View
B+
Retailer 13
-
£568 GBP
A$1,171 AUD
View
B+
Retailer 14
-
£587 GBP
A$1,210 AUD
View
B+
Retailer 15
-
£601 GBP
$805 USD
View
B+
Retailer 16
-
£751 GBP
$1,006 USD
View
B+
Retailer 17
-
£789 GBP
$1,057 USD
View
Retailer 18
-
£852 GBP
$1,142 USD
View
Price last confirmed 95 days ago
B
Retailer 19
-
£910 GBP
View
B+
Retailer 20
-
£941 GBP
View
B
Retailer 21
-
£1,015 GBP
$1,361 USD
View
Most Expensive
B
Brilliant Earth
18445198A · Oct 30
£1,157 GBP
$1,550 USD
View
21 more retailers have this diamond
Prices start from £188 GBPSave up to £969 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
£188 GBP