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Round|Lab Grown|IGI

8.46ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG615378680

Shape and cutting style on the report: Round brilliant

Certificate IGI LG615378680

Diamond specifications and retailer prices

From £1,500 GBP
HK$15,700 HKD
As of October 31, 2026
Save £5,686 GBP (79%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £7,186 GBP at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 8.46ct lab-grown round diamond

This 8.46ct 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 LG615378680 or 615378680. Listed at 21 retailers as of October 31, 2026, with prices from £1,500 to £7,186, a £5,686 spread on the same certified stone. Taylor and Hart lists it at £7,186. 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

8.46
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG615378680
Dimensions13.06 × 13.13 × 8.04 mm
L/W Ratio1.01
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
13.06 mm13.13 mm8.46 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG615378680
Side View
Table 56.0%Crown 33.4°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.4%

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 31
Current: £5,511 GBP|Low: £1,703 GBP|High: £5,939 GBP|Avg: £3,346 GBP
Retailer 1
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
Retailer 16
November 1, 2026
Retailer 15£1,774 GBP
Retailer 4£1,986 GBP
Retailer 6£2,058 GBP
Retailer 16£2,058 GBP
Retailer 13£2,179 GBP
Retailer 8£2,344 GBP
Retailer 10£2,694 GBP
Retailer 11£2,800 GBP
Retailer 14£3,086 GBP
Retailer 3£3,211 GBP
Retailer 12£3,452 GBP
Retailer 9£3,813 GBP
Retailer 7£4,332 GBP
Retailer 2£5,496 GBP
Retailer 1£5,511 GBP
Retailer 5£5,794 GBP

41 data points across 16 retailers

21 retailers£1,500 GBP to £7,186 GBP

A
Cheapest Retailer
-
£1,500 GBP
HK$15,700 HKD
A
Retailer 2
-
£1,774 GBP
$2,377 USD
View
A
Retailer 3
-
£1,931 GBP
$2,587 USD
View
B+
Retailer 4
-
£1,986 GBP
$2,661 USD
View
Final sale: no returns
B+
Retailer 5
-
£2,058 GBP
$2,758 USD
View
Retailer 6
-
£2,058 GBP
$2,758 USD
View
Price last confirmed 20 days ago
B+
Retailer 7
-
£2,179 GBP
$2,920 USD
View
B+
Retailer 8
-
£2,344 GBP
$3,141 USD
View
B+
Retailer 9
-
£2,694 GBP
View
B+
Retailer 10
-
£2,800 GBP
View
B+
Retailer 11
-
£2,829 GBP
$3,791 USD
View
B+
Retailer 12
-
£3,086 GBP
$4,135 USD
View
B
Retailer 13
-
£3,211 GBP
$4,302 USD
View
B+
Retailer 14
-
£3,452 GBP
ZAR 74,718 ZAR
View
B
Retailer 15
-
£3,661 GBP
$4,905 USD
View
B
Retailer 16
-
£3,813 GBP
A$7,861 AUD
View
B
Retailer 17
-
£4,332 GBP
SGD 7,844 SGD
View
B
Retailer 18
-
£5,496 GBP
$7,364 USD
View
B
Retailer 19
-
£5,511 GBP
View
B
Retailer 20
-
£5,794 GBP
$7,763 USD
View
Most Expensive
B
Taylor and Hart
HZB308U · Oct 31
£7,186 GBP
$9,629 USD
View
20 more retailers have this diamond
Prices start from £1,500 GBPSave up to £5,686 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
8.46ct Round
£1,500 GBP