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Oval|Lab Grown|IGI

6.71ct G VS1 Oval Lab Grown Diamond

ID • G/VS1 • IGI LG830643361

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG830643361

Diamond specifications and retailer prices

From £649 GBP
$869 USD
As of October 27, 2026
Save £2,909 GBP (82%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £4,299 GBP at Brilliant Earth · As of October 10, 2026
View at Brilliant Earth

About this 6.71ct lab-grown oval diamond

This 6.71ct lab-grown oval 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 LG830643361 or 830643361. Listed at 23 retailers as of October 27, 2026, with a 449% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle37.6°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830643361
Dimensions15.40 × 10.42 × 6.46 mm
L/W Ratio1.48
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.40 mm10.42 mm6.71 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830643361
Side View
Table 59.0%Crown 37.6°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 62.0%

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 27
Current: £3,558 GBP|Low: £625 GBP|High: £3,601 GBP|Avg: £1,698 GBP|+2.5%
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October 31, 2026
Retailer 10£649 GBP
Retailer 2£705 GBP
Retailer 5£725 GBP
Retailer 8£752 GBP
Retailer 18£808 GBP
Retailer 23£869 GBP
Retailer 20£884 GBP
Retailer 7£1,078 GBP
Retailer 14£1,098 GBP
Retailer 19£1,149 GBP
Retailer 17£1,208 GBP
Retailer 24£1,392 GBP
Retailer 22£1,442 GBP
Retailer 6£1,574 GBP
Retailer 3£2,029 GBP
Retailer 16£2,081 GBP
Retailer 15£2,114 GBP
Retailer 4£2,352 GBP
Retailer 9£2,368 GBP
Retailer 12£2,496 GBP
Retailer 13£2,609 GBP
Retailer 21£2,823 GBP
Retailer 11£3,288 GBP
Retailer 1£3,558 GBP

24 data points across 24 retailers

23 retailers£649 GBP to £3,558 GBP

A
Cheapest Retailer
-
£649 GBP
$869 USD
A
Retailer 2
-
£705 GBP
$945 USD
View
A
Retailer 3
-
£752 GBP
$1,008 USD
View
A
Retailer 4
-
£808 GBP
View
A
Retailer 5
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£869 GBP
HK$9,100 HKD
View
A
Retailer 6
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£884 GBP
$1,185 USD
View
A
Retailer 7
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£1,078 GBP
$1,445 USD
View
A
Retailer 8
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£1,149 GBP
View
B+
Retailer 9
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£1,208 GBP
$1,619 USD
View
Retailer 10
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£1,392 GBP
A$2,870 AUD
View
Price last confirmed 9 days ago
A
Retailer 11
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£1,442 GBP
ZAR 31,203 ZAR
View
B+
Retailer 12
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£1,574 GBP
$2,109 USD
View
B+
Retailer 13
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£2,029 GBP
$2,719 USD
View
B+
Retailer 14
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£2,081 GBP
View
B+
Retailer 15
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£2,114 GBP
$2,833 USD
View
B+
Retailer 16
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£2,352 GBP
$3,152 USD
View
B+
Retailer 17
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£2,368 GBP
$3,172 USD
View
B+
Retailer 18
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£2,496 GBP
SGD 4,519 SGD
View
B+
Retailer 19
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£2,609 GBP
$3,496 USD
View
B
Retailer 20
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£2,823 GBP
View
B
Retailer 21
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£3,288 GBP
$4,405 USD
View
B
Retailer 22
-
£3,558 GBP
$4,767 USD
View
Most Expensive
Brilliant Earth
21498399A · Oct 10
£4,299 GBP
$5,760 USD
View
Price last confirmed 20 days ago
22 more retailers have this diamond
Prices start from £649 GBPSave up to £2,909 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 Oval
£649 GBP