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Round|Lab Grown|IGI

6.61ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG608398200

Shape and cutting style on the report: Round brilliant

Certificate IGI LG608398200

Diamond specifications and retailer prices

From £699 GBP
$936 USD
As of October 29, 2026
Save £4,145 GBP (86%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £4,844 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 6.61ct lab-grown round diamond

This 6.61ct 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 LG608398200 or 608398200. Listed at 21 retailers as of October 29, 2026, with prices from £699 to £4,844, a £4,145 spread on the same certified stone. Brilliant Earth lists it at £4,844. 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

6.61
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG608398200
Dimensions12.02 × 11.97 × 7.45 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
12.02 mm11.97 mm6.61 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG608398200
Side View
Table 57.0%Crown 35.1°Girdle: MediumPavilion 41°Culet: NoneDepth 62.1%

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: £4,844 GBP|Low: £699 GBP|High: £4,844 GBP|Avg: £1,801 GBP
Brilliant Earth
Retailer 2
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October 31, 2026
Retailer 7£699 GBP
Retailer 20£760 GBP
Retailer 10£781 GBP
Retailer 3£811 GBP
Retailer 5£811 GBP
Retailer 16£940 GBP
Retailer 4£1,066 GBP
Retailer 8£1,174 GBP
Retailer 17£1,234 GBP
Retailer 11£1,298 GBP
Retailer 2£1,336 GBP
Retailer 13£1,501 GBP
Retailer 19£1,568 GBP
Retailer 21£1,802 GBP
Retailer 9£2,115 GBP
Retailer 6£2,278 GBP
Retailer 12£2,520 GBP
Retailer 14£2,535 GBP
Retailer 18£2,763 GBP
Retailer 15£2,818 GBP
Retailer 22£3,892 GBP
Brilliant Earth£4,844 GBP

36 data points across 22 retailers

21 retailers£699 GBP to £4,844 GBP

A
Cheapest Retailer
-
£699 GBP
$936 USD
A
Retailer 2
-
£760 GBP
$1,018 USD
View
A
Retailer 3
-
£811 GBP
$1,086 USD
View
Retailer 4
-
£811 GBP
$1,086 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
£940 GBP
$1,260 USD
View
Retailer 6
-
£1,066 GBP
View
Price last confirmed 15 days ago
A
Retailer 7
-
£1,174 GBP
$1,573 USD
View
A
Retailer 8
-
£1,234 GBP
View
B+
Retailer 9
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£1,298 GBP
$1,739 USD
View
A
Retailer 10
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£1,336 GBP
€1,705 EUR
View
B+
Retailer 11
-
£1,501 GBP
A$3,095 AUD
View
B+
Retailer 12
-
£1,568 GBP
ZAR 33,936 ZAR
View
B+
Retailer 13
-
£1,802 GBP
$2,415 USD
View
B+
Retailer 14
-
£2,115 GBP
$2,834 USD
View
B+
Retailer 15
-
£2,278 GBP
$3,052 USD
View
Retailer 16
-
£2,520 GBP
$3,377 USD
View
Price last confirmed 21 days ago
B
Retailer 17
-
£2,535 GBP
$3,396 USD
View
B
Retailer 18
-
£2,763 GBP
View
B
Retailer 19
-
£2,818 GBP
$3,776 USD
View
Retailer 20
-
£3,892 GBP
$5,215 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
8717459A · Oct 31
£4,844 GBP
$6,490 USD
View
20 more retailers have this diamond
Prices start from £699 GBPSave up to £4,145 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
6.61ct Round
£699 GBP