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Asscher|Lab Grown|IGI

8.51ct G VS1 Asscher Lab Grown Diamond

ID • G/VS1 • IGI LG659456904

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG659456904

Diamond specifications and retailer prices

From £990 GBP
$1,326 USD
As of October 31, 2026
Save £4,511 GBP (82%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £5,500 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 8.51ct lab-grown asscher diamond

This 8.51ct lab-grown asscher sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG659456904 or 659456904. Listed at 17 retailers as of October 31, 2026, with prices from £990 to £5,500, a £4,511 spread on the same certified stone. Brilliant Earth lists it at £5,500. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

8.51
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.6°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG659456904
Dimensions11.23 × 11.09 × 7.14 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.23 mm11.09 mm8.51 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG659456904
Side View
Table 65.0%Crown 43.6°Girdle: MED-STKPavilion 38.2°Culet: NoneDepth 64.4%

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 31
Current: £5,500 GBP|Low: £990 GBP|High: £5,508 GBP|Avg: £2,454 GBP|-0.1%
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
Retailer 14
Retailer 15
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Retailer 17
November 1, 2026
Retailer 3£990 GBP
Retailer 4£1,025 GBP
Retailer 15£1,153 GBP
Retailer 7£1,467 GBP
Retailer 2£1,487 GBP
Retailer 12£1,719 GBP
Retailer 11£1,808 GBP
Retailer 14£1,848 GBP
Retailer 10£1,899 GBP
Retailer 17£2,480 GBP
Retailer 5£2,941 GBP
Retailer 16£3,201 GBP
Retailer 13£3,311 GBP
Retailer 8£3,434 GBP
Retailer 6£3,591 GBP
Retailer 9£4,254 GBP
Brilliant Earth£5,500 GBP

45 data points across 17 retailers

17 retailers£990 GBP to £5,500 GBP

A
Cheapest Retailer
-
£990 GBP
$1,326 USD
Final sale: no returns
Retailer 2
-
£1,025 GBP
$1,373 USD
View
Price last confirmed 15 days ago
A
Retailer 3
-
£1,153 GBP
$1,545 USD
View
B+
Retailer 4
-
£1,467 GBP
$1,965 USD
View
A
Retailer 5
-
£1,487 GBP
View
A
Retailer 6
-
£1,719 GBP
ZAR 37,209 ZAR
View
A
Retailer 7
-
£1,808 GBP
€2,307 EUR
View
A
Retailer 8
-
£1,848 GBP
$2,476 USD
View
A
Retailer 9
-
£1,899 GBP
A$3,915 AUD
View
A
Retailer 10
-
£2,480 GBP
View
A
Retailer 11
-
£2,941 GBP
$3,941 USD
View
B+
Retailer 12
-
£3,201 GBP
$4,289 USD
View
B+
Retailer 13
-
£3,311 GBP
View
B+
Retailer 14
-
£3,434 GBP
SGD 6,217 SGD
View
B+
Retailer 15
-
£3,591 GBP
$4,811 USD
View
Retailer 16
-
£4,254 GBP
$5,700 USD
View
Price last confirmed 24 days ago
Most Expensive
B
Brilliant Earth
14242398A · Oct 31
£5,500 GBP
$7,370 USD
View
16 more retailers have this diamond
Prices start from £990 GBPSave up to £4,511 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
8.51ct Asscher
£990 GBP