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Round|Lab Grown|IGI

6.56ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG613353867

Shape and cutting style on the report: Round brilliant

Certificate IGI LG613353867

Diamond specifications and retailer prices

From £693 GBP
$929 USD
As of October 29, 2026
Save £4,113 GBP (86%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £4,806 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 6.56ct lab-grown round diamond

This 6.56ct 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 LG613353867 or 613353867. Listed at 20 retailers as of October 29, 2026, with prices from £693 to £4,806, a £4,113 spread on the same certified stone. Brilliant Earth lists it at £4,806. 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

6.56
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG613353867
Dimensions12.00 × 11.96 × 7.38 mm
L/W Ratio1.00
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
12.00 mm11.96 mm6.56 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG613353867
Side View
Table 58.0%Crown 35.4°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.5%

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: £4,806 GBP|Low: £693 GBP|High: £4,806 GBP|Avg: £1,688 GBP
Brilliant Earth
Retailer 2
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Retailer 21
October 31, 2026
Retailer 6£693 GBP
Retailer 19£755 GBP
Retailer 9£776 GBP
Retailer 4£805 GBP
Retailer 21£805 GBP
Retailer 13£937 GBP
Retailer 3£1,058 GBP
Retailer 7£1,167 GBP
Retailer 15£1,225 GBP
Retailer 10£1,288 GBP
Retailer 2£1,326 GBP
Retailer 16£1,490 GBP
Retailer 17£1,556 GBP
Retailer 20£1,789 GBP
Retailer 8£2,086 GBP
Retailer 5£2,261 GBP
Retailer 11£2,505 GBP
Retailer 12£2,516 GBP
Retailer 18£2,732 GBP
Retailer 14£2,797 GBP
Brilliant Earth£4,806 GBP

37 data points across 21 retailers

20 retailers£693 GBP to £4,806 GBP

A
Cheapest Retailer
-
£693 GBP
$929 USD
A
Retailer 2
-
£755 GBP
$1,011 USD
View
A
Retailer 3
-
£805 GBP
$1,078 USD
View
Retailer 4
-
£805 GBP
$1,078 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
£937 GBP
$1,255 USD
View
Retailer 6
-
£1,058 GBP
View
Price last confirmed 15 days ago
A
Retailer 7
-
£1,167 GBP
$1,564 USD
View
A
Retailer 8
-
£1,225 GBP
View
B+
Retailer 9
-
£1,288 GBP
$1,726 USD
View
A
Retailer 10
-
£1,326 GBP
€1,692 EUR
View
B+
Retailer 11
-
£1,490 GBP
A$3,072 AUD
View
B+
Retailer 12
-
£1,556 GBP
ZAR 33,687 ZAR
View
B+
Retailer 13
-
£1,789 GBP
$2,397 USD
View
B+
Retailer 14
-
£2,086 GBP
$2,795 USD
View
B+
Retailer 15
-
£2,261 GBP
$3,030 USD
View
Retailer 16
-
£2,505 GBP
$3,356 USD
View
Price last confirmed 21 days ago
B
Retailer 17
-
£2,516 GBP
$3,371 USD
View
B
Retailer 18
-
£2,732 GBP
View
B
Retailer 19
-
£2,797 GBP
$3,748 USD
View
Most Expensive
B
Brilliant Earth
8821991A · Oct 31
£4,806 GBP
$6,440 USD
View
19 more retailers have this diamond
Prices start from £693 GBPSave up to £4,113 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
6.56ct Round
£693 GBP