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Radiant|Lab Grown|IGI

6.70ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG620490017

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG620490017

Diamond specifications and retailer prices

From £678 GBP
$908 USD
As of October 30, 2026
Save £3,651 GBP (84%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £4,329 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 6.7ct lab-grown radiant diamond

This 6.7ct lab-grown radiant 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 LG620490017 or 620490017. Listed at 24 retailers as of October 30, 2026, with prices from £678 to £4,329, a £3,651 spread on the same certified stone. Brilliant Earth lists it at £4,329. 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

6.70
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle49.4°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620490017
Dimensions13.36 × 9.08 × 6.25 mm
L/W Ratio1.47
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
13.36 mm9.08 mm6.70 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620490017
Side View
Table 67.0%Crown 49.4°Girdle: MED-STKPavilion 34.6°Culet: NoneDepth 68.8%

Caratlytics Score

How it works →
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 30
Current: £4,329 GBP|Low: £650 GBP|High: £4,471 GBP|Avg: £1,564 GBP|-3.0%
Brilliant Earth
Retailer 2
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Retailer 11
Retailer 12
Retailer 13
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Retailer 18
October 31, 2026
Retailer 5£678 GBP
Retailer 9£737 GBP
Retailer 6£758 GBP
Retailer 7£786 GBP
Retailer 10£786 GBP
Retailer 14£844 GBP
Retailer 16£918 GBP
Retailer 17£1,125 GBP
Retailer 2£1,193 GBP
Retailer 11£1,200 GBP
Retailer 12£1,456 GBP
Retailer 15£1,521 GBP
Retailer 13£1,554 GBP
Retailer 8£2,210 GBP
Retailer 4£2,457 GBP
Retailer 3£2,459 GBP
Retailer 18£2,669 GBP
Brilliant Earth£4,329 GBP

37 data points across 18 retailers

24 retailers£678 GBP to £4,329 GBP

A
Cheapest Retailer
-
£678 GBP
$908 USD
A
Retailer 2
-
£737 GBP
$988 USD
View
A
Retailer 3
-
£758 GBP
$1,016 USD
View
Final sale: no returns
A
Retailer 4
-
£786 GBP
$1,053 USD
View
Retailer 5
-
£786 GBP
$1,053 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
£844 GBP
View
A
Retailer 7
-
£918 GBP
$1,230 USD
View
B+
Retailer 8
-
£1,125 GBP
$1,508 USD
View
A
Retailer 9
-
£1,155 GBP
$1,547 USD
View
A
Retailer 10
-
£1,193 GBP
€1,523 EUR
View
A
Retailer 11
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£1,200 GBP
View
A
Retailer 12
-
£1,456 GBP
A$3,002 AUD
View
A
Retailer 13
-
£1,521 GBP
ZAR 32,917 ZAR
View
A
Retailer 14
-
£1,554 GBP
$2,082 USD
View
B+
Retailer 15
-
£1,914 GBP
$2,565 USD
View
B+
Retailer 16
-
£2,034 GBP
$2,726 USD
View
B+
Retailer 17
-
£2,172 GBP
View
B+
Retailer 18
-
£2,210 GBP
$2,961 USD
View
B+
Retailer 19
-
£2,457 GBP
$3,292 USD
View
B+
Retailer 20
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£2,459 GBP
$3,295 USD
View
B+
Retailer 21
-
£2,669 GBP
View
B+
Retailer 22
-
£2,731 GBP
$3,659 USD
View
B
Retailer 23
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£3,769 GBP
$5,050 USD
View
Most Expensive
B
Brilliant Earth
10794724A · Oct 31
£4,329 GBP
$5,800 USD
View
23 more retailers have this diamond
Prices start from £678 GBPSave up to £3,651 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
6.70ct Radiant
£678 GBP