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Marquise|Lab Grown|IGI

1.00ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG603343198

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG603343198

Diamond specifications and retailer prices

From £151 GBP
$202 USD
As of October 30, 2026
Save £743 GBP (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £893 GBP at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1ct lab-grown marquise diamond

This 1ct 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 LG603343198 or 603343198. Listed at 18 retailers as of October 30, 2026, with prices from £151 to £893, a £743 spread on the same certified stone. Reve Diamonds lists it at £893. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG603343198
Dimensions10.26 × 5.15 × 3.25 mm
L/W Ratio1.99
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
10.26 mm5.15 mm1.00 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG603343198
Side View
Table 56.0%Crown 35.2°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 63.1%

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 30
Current: £342 GBP|Low: £151 GBP|High: £893 GBP|Avg: £462 GBP|+9.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Reve Diamonds
November 1, 2026
Retailer 9£151 GBP
Retailer 4£168 GBP
Retailer 12£245 GBP
Retailer 5£320 GBP
Retailer 11£323 GBP
Retailer 1£342 GBP
Retailer 2£362 GBP
Retailer 6£455 GBP
Retailer 8£601 GBP
Retailer 3£639 GBP
Retailer 10£708 GBP
Retailer 7£873 GBP
Reve Diamonds£893 GBP

40 data points across 13 retailers

18 retailers£151 GBP to £893 GBP

A
Cheapest Retailer
-
£151 GBP
$202 USD
A
Retailer 2
-
£168 GBP
$225 USD
View
Final sale: no returns
A
Retailer 3
-
£174 GBP
$234 USD
View
A
Retailer 4
-
£186 GBP
$250 USD
View
A
Retailer 5
-
£186 GBP
$250 USD
View
A
Retailer 6
-
£245 GBP
$329 USD
View
A
Retailer 7
-
£320 GBP
ZAR 6,938 ZAR
View
B+
Retailer 8
-
£323 GBP
$433 USD
View
B+
Retailer 9
-
£342 GBP
View
B+
Retailer 10
-
£362 GBP
$486 USD
View
B+
Retailer 11
-
£391 GBP
HK$4,100 HKD
View
B+
Retailer 12
-
£455 GBP
A$940 AUD
View
B
Retailer 13
-
£599 GBP
$804 USD
View
B
Retailer 14
-
£601 GBP
$807 USD
View
B
Retailer 15
-
£639 GBP
$857 USD
View
B
Retailer 16
-
£708 GBP
$950 USD
View
B
Retailer 17
-
£873 GBP
View
Most Expensive
B
Reve Diamonds
51AA2D642 · Oct 30
£893 GBP
$1,199 USD
View
17 more retailers have this diamond
Prices start from £151 GBPSave up to £743 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
1.00ct Marquise
£151 GBP