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Round|Lab Grown|IGI

6.60ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG644485597

Shape and cutting style on the report: Round brilliant

Certificate IGI LG644485597

Diamond specifications and retailer prices

From £698 GBP
$935 USD
As of October 29, 2026
Save £4,138 GBP (86%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £4,836 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 6.6ct lab-grown round diamond

This 6.6ct 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 LG644485597 or 644485597. Listed at 22 retailers as of October 29, 2026, with prices from £698 to £4,836, a £4,138 spread on the same certified stone. Brilliant Earth lists it at £4,836. 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

6.60
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644485597
Dimensions12.06 × 12.10 × 7.39 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
12.06 mm12.10 mm6.60 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644485597
Side View
Table 58.0%Crown 34.2°Girdle: MediumPavilion 41.1°Culet: NoneDepth 61.2%

Caratlytics Score

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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 29
Current: £4,836 GBP|Low: £698 GBP|High: £4,836 GBP|Avg: £1,813 GBP
Brilliant Earth
Retailer 2
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Retailer 22
October 31, 2026
Retailer 8£698 GBP
Retailer 19£759 GBP
Retailer 6£781 GBP
Retailer 3£809 GBP
Retailer 5£809 GBP
Retailer 16£940 GBP
Retailer 4£1,064 GBP
Retailer 9£1,173 GBP
Retailer 17£1,232 GBP
Retailer 11£1,296 GBP
Retailer 2£1,335 GBP
Retailer 13£1,499 GBP
Retailer 18£1,566 GBP
Retailer 20£1,800 GBP
Retailer 10£2,109 GBP
Retailer 7£2,275 GBP
Retailer 12£2,517 GBP
Retailer 14£2,532 GBP
Retailer 21£2,758 GBP
Retailer 15£2,814 GBP
Retailer 22£3,892 GBP
Brilliant Earth£4,836 GBP

36 data points across 22 retailers

22 retailers£698 GBP to £4,836 GBP

A
Cheapest Retailer
-
£698 GBP
$935 USD
A
Retailer 2
-
£759 GBP
$1,017 USD
View
A
Retailer 3
-
£781 GBP
$1,047 USD
View
Final sale: no returns
A
Retailer 4
-
£809 GBP
$1,084 USD
View
Retailer 5
-
£809 GBP
$1,084 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
£940 GBP
$1,260 USD
View
Retailer 7
-
£1,064 GBP
View
Price last confirmed 15 days ago
A
Retailer 8
-
£1,173 GBP
$1,572 USD
View
A
Retailer 9
-
£1,232 GBP
View
B+
Retailer 10
-
£1,296 GBP
$1,737 USD
View
A
Retailer 11
-
£1,335 GBP
€1,703 EUR
View
B+
Retailer 12
-
£1,499 GBP
A$3,090 AUD
View
B+
Retailer 13
-
£1,566 GBP
ZAR 33,887 ZAR
View
B+
Retailer 14
-
£1,800 GBP
$2,412 USD
View
B+
Retailer 15
-
£2,109 GBP
$2,826 USD
View
B+
Retailer 16
-
£2,275 GBP
$3,048 USD
View
Retailer 17
-
£2,517 GBP
$3,373 USD
View
Price last confirmed 20 days ago
B
Retailer 18
-
£2,532 GBP
$3,392 USD
View
B
Retailer 19
-
£2,758 GBP
View
B
Retailer 20
-
£2,814 GBP
$3,771 USD
View
Retailer 21
-
£3,892 GBP
$5,215 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
11113182A · Oct 29
£4,836 GBP
$6,480 USD
View
21 more retailers have this diamond
Prices start from £698 GBPSave up to £4,138 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
6.60ct Round
£698 GBP