CaratHunter
Plans
Round|Lab Grown|IGI

6.61ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG588372643

Shape and cutting style on the report: Round brilliant

Certificate IGI LG588372643

Diamond specifications and retailer prices

From £940 GBP
$1,260 USD
As of October 31, 2026
Save £3,903 GBP (81%) vs most expensive(unlock to see where)
18 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 LG588372643 or 588372643. Listed at 18 retailers as of October 31, 2026, with prices from £940 to £4,844, a £3,903 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 angle35.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG588372643
Dimensions12.05 × 11.99 × 7.42 mm
L/W Ratio1.01
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
12.05 mm11.99 mm6.61 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG588372643
Side View
Table 57.0%Crown 35.5°Girdle: MediumPavilion 40.6°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 31
Current: £4,844 GBP|Low: £781 GBP|High: £4,844 GBP|Avg: £1,849 GBP
Brilliant Earth
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
October 31, 2026
Retailer 3£781 GBP
Retailer 8£828 GBP
Retailer 10£940 GBP
Retailer 15£1,174 GBP
Retailer 11£1,234 GBP
Retailer 4£1,298 GBP
Retailer 2£1,336 GBP
Retailer 9£1,501 GBP
Retailer 12£1,568 GBP
Retailer 13£1,802 GBP
Retailer 16£2,115 GBP
Retailer 5£2,520 GBP
Retailer 6£2,535 GBP
Retailer 14£2,763 GBP
Retailer 7£2,818 GBP
Brilliant Earth£4,844 GBP

38 data points across 16 retailers

18 retailers£940 GBP to £4,844 GBP

Retailer 1
-
£713 GBP
$956 USD
Price last confirmed 38 days ago
Retailer 2
-
£776 GBP
$1,040 USD
View
Price last confirmed 38 days ago
Retailer 3
-
£816 GBP
$1,093 USD
View
Price last confirmed 34 days ago
A
Retailer 4
-
£940 GBP
$1,260 USD
View
A
Retailer 5
-
£1,174 GBP
$1,573 USD
View
A
Retailer 6
-
£1,234 GBP
View
B+
Retailer 7
-
£1,298 GBP
$1,739 USD
View
A
Retailer 8
-
£1,336 GBP
€1,705 EUR
View
B+
Retailer 9
-
£1,501 GBP
A$3,095 AUD
View
B+
Retailer 10
-
£1,568 GBP
ZAR 33,936 ZAR
View
B+
Retailer 11
-
£1,802 GBP
$2,415 USD
View
B+
Retailer 12
-
£2,115 GBP
$2,834 USD
View
Retailer 13
-
£2,326 GBP
$3,117 USD
View
Price last confirmed 35 days ago
Retailer 14
-
£2,520 GBP
$3,377 USD
View
Price last confirmed 21 days ago
B
Retailer 15
-
£2,535 GBP
$3,396 USD
View
Retailer 16
-
£2,763 GBP
View
Price last confirmed 10 days ago
B
Retailer 17
-
£2,818 GBP
$3,776 USD
View
Most Expensive
B
Brilliant Earth
7670352A · Oct 31
£4,844 GBP
$6,490 USD
View
17 more retailers have this diamond
Prices start from £940 GBPSave up to £3,903 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
£940 GBP