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Marquise|Lab Grown|IGI

1.02ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG512220527

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG512220527

Diamond specifications and retailer prices

From £641 GBP
$859 USD
As of October 30, 2026
Save £727 GBP (53%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £2,059 GBP at Flawless Fine Jewelry · As of October 31, 2026
View at Flawless Fine Jewelry

About this 1.02ct lab-grown marquise diamond

This 1.02ct lab-grown marquise sits in the classic one-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG512220527 or 512220527. Listed at 16 retailers as of October 29, 2026, with a 113% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.02
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.1°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512220527
Dimensions10.94 × 5.22 × 3.02 mm
L/W Ratio2.10
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
10.94 mm5.22 mm1.02 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512220527
Side View
Table 58.5%Crown 38.1°Girdle: THN-STKPavilion 35.9°Culet: NoneDepth 57.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £2,059 GBP|Low: £616 GBP|High: £2,823 GBP|Avg: £1,317 GBP
Flawless Fine Jewelry
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 11£641 GBP
Retailer 4£698 GBP
Retailer 5£718 GBP
Retailer 12£731 GBP
Retailer 13£744 GBP
Retailer 6£877 GBP
Retailer 2£1,144 GBP
Retailer 14£1,196 GBP
Retailer 8£1,368 GBP
Retailer 10£1,711 GBP
Retailer 7£1,939 GBP
Flawless Fine Jewelry£2,059 GBP
Retailer 3£2,092 GBP
Retailer 9£2,792 GBP

45 data points across 14 retailers

16 retailers£641 GBP to £1,368 GBP

B
Cheapest Retailer
-
£641 GBP
$859 USD
B
Retailer 2
-
£698 GBP
$935 USD
View
B
Retailer 3
-
£718 GBP
$962 USD
View
Final sale: no returns
B
Retailer 4
-
£731 GBP
$980 USD
View
B
Retailer 5
-
£744 GBP
$997 USD
View
Retailer 6
-
£744 GBP
$997 USD
View
Price last confirmed 15 days ago
B
Retailer 7
-
£877 GBP
$1,175 USD
View
B
Retailer 8
-
£1,144 GBP
View
B
Retailer 9
-
£1,196 GBP
$1,602 USD
View
B
Retailer 10
-
£1,368 GBP
ZAR 29,603 ZAR
View
Retailer 11
-
£1,711 GBP
$2,292 USD
View
Price under review
Retailer 12
-
£1,939 GBP
A$3,996 AUD
View
Price under review
Most Expensive
Flawless Fine Jewelry
ED86C9D03 · Oct 31
£2,059 GBP
View
Price under review
12 more retailers have this diamond
Prices start from £641 GBPSave up to £727 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.

B
1.02ct Marquise
£641 GBP