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Round|Lab Grown|IGI

8.56ct G VS1 Round Lab Grown Diamond

EX • G/VS1 • IGI LG614320463

Shape and cutting style on the report: Round brilliant

Certificate IGI LG614320463

Diamond specifications and retailer prices

From £1,320 GBP
$1,768 USD
As of November 1, 2026
Save £3,483 GBP (73%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £12,322 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 8.56ct lab-grown round diamond

This 8.56ct lab-grown round 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 LG614320463 or 614320463. Listed at 21 retailers as of October 31, 2026, with a 264% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

8.56
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG614320463
Dimensions12.95 × 13.01 × 8.12 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
12.95 mm13.01 mm8.56 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG614320463
Side View
Table 56.0%Crown 36.4°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.6%

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: Nov 1
Current: £12,322 GBP|Low: £1,131 GBP|High: £12,329 GBP|Avg: £2,744 GBP
Brilliant Earth
Retailer 2
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Retailer 8
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Retailer 11
Retailer 12
Retailer 13
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Retailer 18
November 2, 2026
Retailer 17£1,178 GBP
Retailer 7£1,320 GBP
Retailer 3£1,367 GBP
Retailer 9£1,367 GBP
Retailer 6£1,493 GBP
Retailer 10£1,740 GBP
Retailer 11£1,789 GBP
Retailer 2£1,929 GBP
Retailer 5£2,151 GBP
Retailer 13£2,151 GBP
Retailer 18£2,210 GBP
Retailer 14£2,293 GBP
Retailer 12£2,533 GBP
Retailer 15£3,537 GBP
Retailer 4£3,685 GBP
Retailer 16£3,925 GBP
Retailer 8£3,981 GBP
Brilliant Earth£12,322 GBP

41 data points across 18 retailers

21 retailers£1,320 GBP to £4,803 GBP

A
Cheapest Retailer
-
£1,320 GBP
$1,768 USD
Final sale: no returns
Retailer 2
-
£1,367 GBP
$1,832 USD
View
Price last confirmed 20 days ago
Retailer 3
-
£1,367 GBP
$1,832 USD
View
Price last confirmed 11 days ago
A
Retailer 4
-
£1,493 GBP
$2,000 USD
View
A
Retailer 5
-
£1,740 GBP
$2,331 USD
View
A
Retailer 6
-
£1,789 GBP
View
A
Retailer 7
-
£1,929 GBP
View
B+
Retailer 8
-
£2,151 GBP
$2,882 USD
View
B+
Retailer 9
-
£2,151 GBP
€2,745 EUR
View
B+
Retailer 10
-
£2,210 GBP
$2,961 USD
View
B+
Retailer 11
-
£2,293 GBP
ZAR 49,628 ZAR
View
B+
Retailer 12
-
£2,533 GBP
A$5,221 AUD
View
Retailer 13
-
£2,562 GBP
$3,433 USD
View
Price last confirmed 11 days ago
B
Retailer 14
-
£3,298 GBP
View
B
Retailer 15
-
£3,537 GBP
$4,739 USD
View
B
Retailer 16
-
£3,685 GBP
$4,937 USD
View
Retailer 17
-
£3,925 GBP
View
Price last confirmed 11 days ago
B
Retailer 18
-
£3,981 GBP
$5,334 USD
View
Retailer 19
-
£4,586 GBP
$6,145 USD
View
Price last confirmed 43 days ago
B
Retailer 20
-
£4,803 GBP
$6,435 USD
View
Most Expensive
Brilliant Earth
20601799A · Oct 31
£12,322 GBP
$16,510 USD
View
Price under review
20 more retailers have this diamond
Prices start from £1,320 GBPSave up to £3,483 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
8.56ct Round
£1,320 GBP