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Round|Lab Grown|IGI

6.70ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG577399243

Shape and cutting style on the report: Round brilliant

Certificate IGI LG577399243

Diamond specifications and retailer prices

From £811 GBP
$1,086 USD
As of October 29, 2026
Save £4,511 GBP (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £5,321 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 6.7ct lab-grown round diamond

This 6.7ct 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 LG577399243 or 577399243. Listed at 22 retailers as of October 29, 2026, with prices from £811 to £5,321, a £4,511 spread on the same certified stone. Brilliant Earth lists it at £5,321. 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 angle34.9°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG577399243
Dimensions12.01 × 12.07 × 7.40 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
12.01 mm12.07 mm6.70 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG577399243
Side View
Table 58.0%Crown 34.9°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.5%

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 29
Current: £5,321 GBP|Low: £787 GBP|High: £7,113 GBP|Avg: £2,176 GBP|-10.0%
Brilliant Earth
Retailer 2
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October 31, 2026
Retailer 7£811 GBP
Retailer 22£882 GBP
Retailer 11£908 GBP
Retailer 3£940 GBP
Retailer 5£940 GBP
Retailer 2£1,071 GBP
Retailer 4£1,237 GBP
Retailer 8£1,298 GBP
Retailer 13£1,357 GBP
Retailer 19£1,358 GBP
Retailer 12£1,497 GBP
Retailer 21£1,741 GBP
Retailer 6£1,763 GBP
Retailer 17£1,820 GBP
Retailer 9£1,908 GBP
Retailer 10£2,204 GBP
Retailer 15£2,723 GBP
Retailer 14£2,862 GBP
Retailer 18£3,207 GBP
Retailer 16£3,287 GBP
Retailer 23£3,896 GBP
Retailer 20£4,953 GBP
Brilliant Earth£5,321 GBP

33 data points across 23 retailers

22 retailers£811 GBP to £5,321 GBP

A
Cheapest Retailer
-
£811 GBP
$1,086 USD
A
Retailer 2
-
£882 GBP
$1,182 USD
View
A
Retailer 3
-
£940 GBP
$1,260 USD
View
Retailer 4
-
£940 GBP
$1,260 USD
View
Price last confirmed 14 days ago
A
Retailer 5
-
£1,071 GBP
$1,435 USD
View
Retailer 6
-
£1,237 GBP
View
Price last confirmed 14 days ago
A
Retailer 7
-
£1,298 GBP
$1,739 USD
View
A
Retailer 8
-
£1,357 GBP
View
A
Retailer 9
-
£1,358 GBP
€1,733 EUR
View
B+
Retailer 10
-
£1,497 GBP
$2,006 USD
View
Retailer 11
-
£1,741 GBP
A$3,589 AUD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
£1,763 GBP
$2,362 USD
View
B+
Retailer 13
-
£1,820 GBP
ZAR 39,390 ZAR
View
B+
Retailer 14
-
£1,908 GBP
$2,556 USD
View
B+
Retailer 15
-
£2,204 GBP
$2,953 USD
View
B
Retailer 16
-
£2,723 GBP
$3,649 USD
View
Retailer 17
-
£2,862 GBP
$3,835 USD
View
Price last confirmed 20 days ago
B
Retailer 18
-
£3,207 GBP
View
B
Retailer 19
-
£3,287 GBP
$4,404 USD
View
Retailer 20
-
£3,896 GBP
$5,220 USD
View
Price last confirmed 10 days ago
B
Retailer 21
-
£4,953 GBP
$6,636 USD
View
Most Expensive
B
Brilliant Earth
7625062A · Oct 30
£5,321 GBP
$7,130 USD
View
21 more retailers have this diamond
Prices start from £811 GBPSave up to £4,511 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 Round
£811 GBP