Marquise|Lab Grown|IGI

3.03ct G SI2 Marquise Lab Grown Diamond

VG • G/SI2 • IGI LG825655562

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG825655562

Diamond specifications and retailer prices

From £260 GBP
$348 USD
As of October 30, 2026
Save £1,281 GBP (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,541 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 3.03ct lab-grown marquise diamond

This 3.03ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG825655562 or 825655562. Listed at 10 retailers as of October 28, 2026, with prices from £260 to £1,541, a £1,281 spread on the same certified stone. Rare Carat lists it at £1,541. 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
G
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825655562
Dimensions15.37 × 7.59 × 4.65 mm
L/W Ratio2.03
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.37 mm7.59 mm3.03 ctG / SI2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825655562
Side View
Table 60.0%Crown 34.4°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.3%

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: £1,541 GBP|Low: £290 GBP|High: £1,541 GBP|Avg: £714 GBP
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 8£290 GBP
Retailer 7£322 GBP
Retailer 3£395 GBP
Retailer 5£519 GBP
Retailer 4£574 GBP
Retailer 9£728 GBP
Retailer 6£945 GBP
Retailer 2£1,259 GBP
Rare Carat£1,541 GBP

12 data points across 9 retailers

10 retailers£260 GBP to £1,541 GBP

A
Cheapest Retailer
-
£260 GBP
$348 USD
A
Retailer 2
-
£290 GBP
$389 USD
View
Final sale: no returns
Retailer 3
-
£322 GBP
$432 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
£395 GBP
View
B+
Retailer 5
-
£519 GBP
$695 USD
View
A
Retailer 6
-
£574 GBP
View
B+
Retailer 7
-
£728 GBP
$975 USD
View
B+
Retailer 8
-
£945 GBP
$1,266 USD
View
B
Retailer 9
-
£1,259 GBP
View
Most Expensive
B
Rare Carat
PR-14696 · Oct 28
£1,541 GBP
$2,065 USD
View
9 more retailers have this diamond
Prices start from £260 GBPSave up to £1,281 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
£260 GBP