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Marquise|Lab Grown|IGI

2.03ct D SI1 Marquise Lab Grown Diamond

VG • D/SI1 • IGI LG800664971

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG800664971

Diamond specifications and retailer prices

From £285 GBP
As of November 6, 2026
Save £1,401 GBP (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,687 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 2.03ct lab-grown marquise diamond

This 2.03ct lab-grown marquise sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG800664971 or 800664971. Listed at 16 retailers as of November 4, 2026, with prices from £285 to £1,687, a £1,401 spread on the same certified stone. Brilliant Earth lists it at £1,687. 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

2.03
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800664971
Dimensions12.95 × 6.49 × 4.24 mm
L/W Ratio2.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.95 mm6.49 mm2.03 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800664971
Side View
Table 60.0%Crown 37.8°Girdle: MED-STKPavilion 41°Culet: NoneDepth 65.3%

Caratlytics Score

How it works →
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: Nov 6
Current: £1,687 GBP|Low: £273 GBP|High: £3,960 GBP|Avg: £774 GBP|-21.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 13£285 GBP
Retailer 14£319 GBP
Retailer 4£354 GBP
Retailer 15£354 GBP
Retailer 10£435 GBP
Retailer 9£464 GBP
Retailer 5£550 GBP
Retailer 6£551 GBP
Retailer 3£562 GBP
Retailer 2£634 GBP
Retailer 11£992 GBP
Retailer 7£1,164 GBP
Retailer 12£1,323 GBP
Retailer 8£1,378 GBP
Brilliant Earth£1,687 GBP

45 data points across 15 retailers

16 retailers£285 GBP to £1,687 GBP

A
Cheapest Retailer
-
£285 GBP
A
Retailer 2
-
£319 GBP
View
A
Retailer 3
-
£319 GBP
View
Final sale: no returns
A
Retailer 4
-
£354 GBP
View
Retailer 5
-
£354 GBP
View
Price last confirmed 12 days ago
A
Retailer 6
-
£464 GBP
View
B+
Retailer 7
-
£550 GBP
View
B+
Retailer 8
-
£551 GBP
View
B+
Retailer 9
-
£562 GBP
View
B+
Retailer 10
-
£634 GBP
View
B
Retailer 11
-
£992 GBP
View
B
Retailer 12
-
£1,137 GBP
View
B
Retailer 13
-
£1,164 GBP
View
B
Retailer 14
-
£1,323 GBP
View
B
Retailer 15
-
£1,378 GBP
View
Most Expensive
B
Brilliant Earth
21067156A · Nov 4
£1,687 GBP
$2,270 USD
View
15 more retailers have this diamond
Prices start from £285 GBPSave up to £1,401 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
2.03ct Marquise
£285 GBP