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Marquise|Lab Grown|IGI

4.00ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG800619894

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG800619894

Diamond specifications and retailer prices

From £642 GBP
$860 USD
As of November 1, 2026
Save £1,453 GBP (69%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £2,095 GBP at With Clarity · As of October 31, 2026
View at With Clarity

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 LG800619894 or 800619894. Listed at 9 retailers as of October 31, 2026, with prices from £642 to £2,095, a £1,453 spread on the same certified stone. With Clarity lists it at £2,095. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800619894
Dimensions15.63 × 8.40 × 5.13 mm
L/W Ratio1.86
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.63 mm8.40 mm4.00 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800619894
Side View
Table 57.0%Crown 35.4°Girdle: MED-STKPavilion 39.3°Culet: NoneDepth 61.1%

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: Nov 1
Current: £783 GBP|Low: £642 GBP|High: £2,053 GBP|Avg: £1,133 GBP|+1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
With Clarity
November 2, 2026
Retailer 5£642 GBP
Retailer 3£699 GBP
Retailer 6£717 GBP
Retailer 1£783 GBP
Retailer 7£1,026 GBP
Retailer 4£2,000 GBP
Retailer 2£2,019 GBP
With Clarity£2,053 GBP

42 data points across 8 retailers

9 retailers£642 GBP to £2,095 GBP

B+
Cheapest Retailer
-
£642 GBP
$860 USD
A
Retailer 2
-
£699 GBP
€892 EUR
View
A
Retailer 3
-
£717 GBP
$961 USD
View
A
Retailer 4
-
£783 GBP
View
A
Retailer 5
-
£1,026 GBP
$1,375 USD
View
B+
Retailer 6
-
£1,556 GBP
$2,085 USD
View
B
Retailer 7
-
£2,000 GBP
View
B
Retailer 8
-
£2,019 GBP
$2,705 USD
View
Most Expensive
B
With Clarity
800619894 · Oct 31
£2,095 GBP
$2,807 USD
View
8 more retailers have this diamond
Prices start from £642 GBPSave up to £1,453 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
£642 GBP