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Round|Lab Grown|IGI

6.63ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG588377632

Shape and cutting style on the report: Round brilliant

Certificate IGI LG588377632

Diamond specifications and retailer prices

From £802 GBP
$1,075 USD
As of October 29, 2026
Save £4,099 GBP (84%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £4,901 GBP at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 6.63ct lab-grown round diamond

This 6.63ct 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 LG588377632 or 588377632. Listed at 20 retailers as of October 29, 2026, with prices from £802 to £4,901, a £4,099 spread on the same certified stone. Blue Nile lists it at £4,901. 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

6.63
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG588377632
Dimensions12.20 × 12.17 × 7.33 mm
L/W Ratio1.00
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
12.20 mm12.17 mm6.63 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG588377632
Side View
Table 58.0%Crown 33.9°Girdle: THN-MEDPavilion 40.6°Culet: NoneDepth 60.1%

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: £4,901 GBP|Low: £716 GBP|High: £5,008 GBP|Avg: £1,868 GBP|-0.0%
Blue Nile
Retailer 2
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Retailer 21
October 31, 2026
Retailer 12£800 GBP
Retailer 7£802 GBP
Retailer 19£873 GBP
Retailer 3£931 GBP
Retailer 5£931 GBP
Retailer 15£1,060 GBP
Retailer 4£1,225 GBP
Retailer 8£1,287 GBP
Retailer 13£1,340 GBP
Retailer 16£1,343 GBP
Retailer 11£1,482 GBP
Retailer 2£1,725 GBP
Retailer 6£1,745 GBP
Retailer 17£1,801 GBP
Retailer 20£1,888 GBP
Retailer 21£2,162 GBP
Retailer 9£2,695 GBP
Retailer 18£3,173 GBP
Retailer 10£3,252 GBP
Retailer 14£4,859 GBP
Blue Nile£4,901 GBP

41 data points across 21 retailers

20 retailers£802 GBP to £4,901 GBP

A
Cheapest Retailer
-
£802 GBP
$1,075 USD
A
Retailer 2
-
£873 GBP
$1,170 USD
View
A
Retailer 3
-
£931 GBP
$1,247 USD
View
Retailer 4
-
£931 GBP
$1,247 USD
View
Price last confirmed 14 days ago
A
Retailer 5
-
£1,060 GBP
$1,420 USD
View
Retailer 6
-
£1,225 GBP
View
Price last confirmed 14 days ago
A
Retailer 7
-
£1,287 GBP
$1,724 USD
View
A
Retailer 8
-
£1,340 GBP
€1,710 EUR
View
A
Retailer 9
-
£1,343 GBP
View
B+
Retailer 10
-
£1,482 GBP
$1,986 USD
View
B+
Retailer 11
-
£1,725 GBP
A$3,555 AUD
View
B+
Retailer 12
-
£1,745 GBP
$2,338 USD
View
B+
Retailer 13
-
£1,801 GBP
ZAR 38,988 ZAR
View
B+
Retailer 14
-
£1,888 GBP
$2,530 USD
View
B+
Retailer 15
-
£2,162 GBP
$2,897 USD
View
B
Retailer 16
-
£2,695 GBP
$3,611 USD
View
B
Retailer 17
-
£3,173 GBP
View
B
Retailer 18
-
£3,252 GBP
$4,357 USD
View
B
Retailer 19
-
£4,859 GBP
$6,510 USD
View
Most Expensive
B
Blue Nile
25246163 · Oct 31
£4,901 GBP
$6,567 USD
View
19 more retailers have this diamond
Prices start from £802 GBPSave up to £4,099 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
6.63ct Round
£802 GBP