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Marquise|Lab Grown|IGI

3.03ct H VS1 Marquise Lab Grown Diamond

VG • H/VS1 • IGI LG838629402

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG838629402

Diamond specifications and retailer prices

From £284 GBP
As of November 3, 2026
Save £1,364 GBP (83%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,648 GBP at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 3.03ct lab-grown marquise diamond

This 3.03ct lab-grown marquise sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG838629402 or 838629402. Listed at 4 retailers as of November 3, 2026, with prices from £284 to £1,648, a £1,364 spread on the same certified stone. Brilliant Earth lists it at £1,648. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.03
Carat
H
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838629402
Dimensions14.96 × 7.56 × 4.68 mm
L/W Ratio1.98
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.96 mm7.56 mm3.03 ctH / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838629402
Side View
Table 58.0%Crown 35.2°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 61.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 3
Current: £1,648 GBP|Low: £284 GBP|High: £3,035 GBP|Avg: £1,421 GBP|-45.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
November 4, 2026
Retailer 3£284 GBP
Retailer 2£580 GBP
Retailer 4£1,536 GBP
Brilliant Earth£1,648 GBP

34 data points across 4 retailers

4 retailers£284 GBP to £1,648 GBP

A
Cheapest Retailer
-
£284 GBP
Final sale: no returns
A
Retailer 2
-
£580 GBP
View
Retailer 3
-
£1,536 GBP
View
Price last confirmed 17 days ago
Most Expensive
B+
Brilliant Earth
21542050A · Nov 3
£1,648 GBP
$2,210 USD
View
3 more retailers have this diamond
Prices start from £284 GBPSave up to £1,364 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
3.03ct Marquise
£284 GBP