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Round|Lab Grown|IGI

6.68ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG600342243

Shape and cutting style on the report: Round brilliant

Certificate IGI LG600342243

Diamond specifications and retailer prices

From £705 GBP
$945 USD
As of October 29, 2026
Save £4,191 GBP (86%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £4,896 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 6.68ct lab-grown round diamond

This 6.68ct 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 LG600342243 or 600342243. Listed at 20 retailers as of October 29, 2026, with prices from £705 to £4,896, a £4,191 spread on the same certified stone. Brilliant Earth lists it at £4,896. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG600342243
Dimensions12.02 × 12.05 × 7.42 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
12.02 mm12.05 mm6.68 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG600342243
Side View
Table 58.0%Crown 35.4°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.7%

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: £4,896 GBP|Low: £705 GBP|High: £4,896 GBP|Avg: £1,691 GBP
Brilliant Earth
Retailer 2
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Retailer 21
October 31, 2026
Retailer 6£705 GBP
Retailer 19£768 GBP
Retailer 9£790 GBP
Retailer 4£819 GBP
Retailer 21£819 GBP
Retailer 15£948 GBP
Retailer 3£1,077 GBP
Retailer 7£1,184 GBP
Retailer 16£1,257 GBP
Retailer 10£1,310 GBP
Retailer 2£1,349 GBP
Retailer 13£1,517 GBP
Retailer 18£1,584 GBP
Retailer 20£1,764 GBP
Retailer 8£2,158 GBP
Retailer 5£2,302 GBP
Retailer 12£2,538 GBP
Retailer 11£2,542 GBP
Retailer 17£2,790 GBP
Retailer 14£2,848 GBP
Brilliant Earth£4,896 GBP

37 data points across 21 retailers

20 retailers£705 GBP to £4,896 GBP

A
Cheapest Retailer
-
£705 GBP
$945 USD
A
Retailer 2
-
£768 GBP
$1,029 USD
View
A
Retailer 3
-
£819 GBP
$1,097 USD
View
Retailer 4
-
£819 GBP
$1,097 USD
View
Price last confirmed 14 days ago
A
Retailer 5
-
£948 GBP
$1,270 USD
View
Retailer 6
-
£1,077 GBP
View
Price last confirmed 14 days ago
A
Retailer 7
-
£1,184 GBP
$1,587 USD
View
A
Retailer 8
-
£1,257 GBP
View
B+
Retailer 9
-
£1,310 GBP
$1,755 USD
View
A
Retailer 10
-
£1,349 GBP
€1,722 EUR
View
B+
Retailer 11
-
£1,517 GBP
A$3,127 AUD
View
B+
Retailer 12
-
£1,584 GBP
ZAR 34,284 ZAR
View
B+
Retailer 13
-
£1,764 GBP
$2,364 USD
View
B+
Retailer 14
-
£2,158 GBP
$2,891 USD
View
B+
Retailer 15
-
£2,302 GBP
$3,084 USD
View
B+
Retailer 16
-
£2,538 GBP
$3,401 USD
View
Retailer 17
-
£2,542 GBP
$3,406 USD
View
Price last confirmed 20 days ago
B
Retailer 18
-
£2,790 GBP
View
B
Retailer 19
-
£2,848 GBP
$3,817 USD
View
Most Expensive
B
Brilliant Earth
8177216A · Oct 29
£4,896 GBP
$6,560 USD
View
19 more retailers have this diamond
Prices start from £705 GBPSave up to £4,191 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 Round
£705 GBP