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Marquise|Lab Grown|IGI

4.00ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG800615838

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG800615838

Diamond specifications and retailer prices

From £390 GBP
$523 USD
As of November 2, 2026
Save £2,222 GBP (85%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £2,612 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4ct lab-grown marquise diamond

This 4ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG800615838 or 800615838. Listed at 21 retailers as of October 31, 2026, with prices from £390 to £2,612, a £2,222 spread on the same certified stone. Brilliant Earth lists it at £2,612. 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

4.00
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800615838
Dimensions17.34 × 8.38 × 4.71 mm
L/W Ratio2.07
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.34 mm8.38 mm4.00 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800615838
Side View
Table 69.0%Crown 34.8°Girdle: STK-THKPavilion 38°Culet: NoneDepth 56.2%

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: Nov 2
Current: £2,612 GBP|Low: £379 GBP|High: £4,665 GBP|Avg: £1,167 GBP|-44.0%
Brilliant Earth
Retailer 2
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Retailer 21
November 2, 2026
Retailer 8£390 GBP
Retailer 12£437 GBP
Retailer 20£437 GBP
Retailer 3£484 GBP
Retailer 11£484 GBP
Retailer 14£581 GBP
Retailer 18£586 GBP
Retailer 4£722 GBP
Retailer 2£751 GBP
Retailer 17£963 GBP
Retailer 15£970 GBP
Retailer 21£1,028 GBP
Retailer 19£1,065 GBP
Retailer 10£1,273 GBP
Retailer 5£1,410 GBP
Retailer 9£1,574 GBP
Retailer 6£1,796 GBP
Retailer 13£2,023 GBP
Retailer 16£2,032 GBP
Retailer 7£2,121 GBP
Brilliant Earth£2,612 GBP

42 data points across 21 retailers

21 retailers£390 GBP to £2,612 GBP

A
Cheapest Retailer
-
£390 GBP
$523 USD
A
Retailer 2
-
£437 GBP
$586 USD
View
Final sale: no returns
A
Retailer 3
-
£437 GBP
$586 USD
View
Retailer 4
-
£484 GBP
$649 USD
View
Price last confirmed 17 days ago
A
Retailer 5
-
£484 GBP
$649 USD
View
B+
Retailer 6
-
£581 GBP
$779 USD
View
A
Retailer 7
-
£586 GBP
$785 USD
View
A
Retailer 8
-
£722 GBP
$968 USD
View
A
Retailer 9
-
£751 GBP
View
A
Retailer 10
-
£963 GBP
ZAR 20,853 ZAR
View
A
Retailer 11
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£970 GBP
A$2,000 AUD
View
A
Retailer 12
-
£1,028 GBP
$1,377 USD
View
A
Retailer 13
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£1,065 GBP
$1,427 USD
View
B+
Retailer 14
-
£1,273 GBP
$1,706 USD
View
B+
Retailer 15
-
£1,410 GBP
View
B+
Retailer 16
-
£1,574 GBP
$2,109 USD
View
B+
Retailer 17
-
£1,796 GBP
$2,406 USD
View
B
Retailer 18
-
£2,023 GBP
$2,710 USD
View
B
Retailer 19
-
£2,032 GBP
View
B
Retailer 20
-
£2,121 GBP
$2,842 USD
View
Most Expensive
B
Brilliant Earth
20238254A · Oct 31
£2,612 GBP
$3,500 USD
View
20 more retailers have this diamond
Prices start from £390 GBPSave up to £2,222 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
4.00ct Marquise
£390 GBP