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Oval|Lab Grown|IGI

6.68ct G VS1 Oval Lab Grown Diamond

EX • G/VS1 • IGI LG819655390

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG819655390

Diamond specifications and retailer prices

From £852 GBP
$1,142 USD
As of October 29, 2026
Save £2,608 GBP (75%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £3,460 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 6.68ct lab-grown oval diamond

This 6.68ct lab-grown oval 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 LG819655390 or 819655390. Listed at 17 retailers as of October 29, 2026, with prices from £852 to £3,460, a £2,608 spread on the same certified stone. Taylor and Hart lists it at £3,460. 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

6.68
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG819655390
Dimensions15.52 × 10.59 × 6.59 mm
L/W Ratio1.47
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.52 mm10.59 mm6.68 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819655390
Side View
Table 58.0%Crown 36.9°Girdle: THN-MEDPavilion 40.3°Culet: NoneDepth 62.2%

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 29
Current: £1,434 GBP|Low: £818 GBP|High: £3,460 GBP|Avg: £1,996 GBP|-1.1%
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
Taylor and Hart
October 31, 2026
Retailer 14£852 GBP
Retailer 4£928 GBP
Retailer 15£989 GBP
Retailer 13£1,119 GBP
Retailer 10£1,414 GBP
Retailer 1£1,434 GBP
Retailer 11£1,830 GBP
Retailer 3£1,853 GBP
Retailer 8£1,913 GBP
Retailer 6£1,948 GBP
Retailer 7£2,082 GBP
Retailer 5£2,730 GBP
Retailer 2£2,862 GBP
Retailer 9£3,193 GBP
Retailer 12£3,280 GBP
Taylor and Hart£3,460 GBP

40 data points across 16 retailers

17 retailers£852 GBP to £3,460 GBP

A
Cheapest Retailer
-
£852 GBP
$1,142 USD
A
Retailer 2
-
£928 GBP
$1,243 USD
View
A
Retailer 3
-
£989 GBP
$1,325 USD
View
Retailer 4
-
£989 GBP
$1,325 USD
View
Price last confirmed 14 days ago
A
Retailer 5
-
£1,119 GBP
$1,500 USD
View
B+
Retailer 6
-
£1,414 GBP
$1,895 USD
View
A
Retailer 7
-
£1,434 GBP
View
Retailer 8
-
£1,830 GBP
A$3,773 AUD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
£1,853 GBP
$2,483 USD
View
B+
Retailer 10
-
£1,913 GBP
ZAR 41,414 ZAR
View
B+
Retailer 11
-
£1,948 GBP
$2,610 USD
View
B+
Retailer 12
-
£2,082 GBP
$2,790 USD
View
B
Retailer 13
-
£2,730 GBP
View
B
Retailer 14
-
£2,862 GBP
$3,835 USD
View
B
Retailer 15
-
£3,193 GBP
View
B
Retailer 16
-
£3,280 GBP
$4,395 USD
View
Most Expensive
B
Taylor and Hart
0RCJ5QY · Oct 30
£3,460 GBP
$4,636 USD
View
16 more retailers have this diamond
Prices start from £852 GBPSave up to £2,608 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
6.68ct Oval
£852 GBP