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Round|Lab Grown|IGI

6.71ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG615370596

Shape and cutting style on the report: Round brilliant

Certificate IGI LG615370596

Diamond specifications and retailer prices

From £716 GBP
$960 USD
As of October 29, 2026
Save £4,202 GBP (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £4,918 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 6.71ct lab-grown round diamond

This 6.71ct 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 LG615370596 or 615370596. Listed at 22 retailers as of October 29, 2026, with prices from £716 to £4,918, a £4,202 spread on the same certified stone. Brilliant Earth lists it at £4,918. 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

6.71
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG615370596
Dimensions11.95 × 12.04 × 7.48 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
11.95 mm12.04 mm6.71 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG615370596
Side View
Table 56.0%Crown 35.9°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.3%

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: £4,918 GBP|Low: £687 GBP|High: £6,038 GBP|Avg: £1,776 GBP|-6.5%
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£716 GBP
Retailer 6£802 GBP
Retailer 7£831 GBP
Retailer 15£963 GBP
Retailer 11£1,091 GBP
Retailer 16£1,164 GBP
Retailer 8£1,196 GBP
Retailer 2£1,235 GBP
Retailer 12£1,277 GBP
Retailer 9£1,540 GBP
Retailer 10£1,554 GBP
Retailer 14£1,608 GBP
Retailer 4£2,575 GBP
Retailer 5£2,576 GBP
Retailer 13£2,833 GBP
Brilliant Earth£4,918 GBP

36 data points across 16 retailers

22 retailers£716 GBP to £4,918 GBP

A
Cheapest Retailer
-
£716 GBP
$960 USD
A
Retailer 2
-
£779 GBP
$1,044 USD
View
A
Retailer 3
-
£802 GBP
$1,074 USD
View
Final sale: no returns
A
Retailer 4
-
£831 GBP
$1,113 USD
View
Retailer 5
-
£831 GBP
$1,113 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
£963 GBP
$1,290 USD
View
A
Retailer 7
-
£1,091 GBP
View
B+
Retailer 8
-
£1,164 GBP
$1,560 USD
View
A
Retailer 9
-
£1,196 GBP
$1,603 USD
View
A
Retailer 10
-
£1,235 GBP
€1,576 EUR
View
A
Retailer 11
-
£1,277 GBP
View
B+
Retailer 12
-
£1,540 GBP
A$3,174 AUD
View
B+
Retailer 13
-
£1,554 GBP
$2,082 USD
View
B+
Retailer 14
-
£1,608 GBP
ZAR 34,801 ZAR
View
B+
Retailer 15
-
£1,983 GBP
$2,657 USD
View
B+
Retailer 16
-
£2,178 GBP
$2,918 USD
View
B+
Retailer 17
-
£2,336 GBP
$3,130 USD
View
B
Retailer 18
-
£2,575 GBP
$3,450 USD
View
B
Retailer 19
-
£2,576 GBP
$3,452 USD
View
B
Retailer 20
-
£2,833 GBP
View
B
Retailer 21
-
£2,893 GBP
$3,876 USD
View
Most Expensive
B
Brilliant Earth
9054281A · Oct 30
£4,918 GBP
$6,590 USD
View
21 more retailers have this diamond
Prices start from £716 GBPSave up to £4,202 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
6.71ct Round
£716 GBP