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Round|Lab Grown|IGI

2.03ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG451057442

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451057442

Diamond specifications and retailer prices

From £892 GBP
As of November 5, 2026
Save £5,486 GBP (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £6,378 GBP at Moon Ocean · As of November 5, 2026
View at Moon Ocean

About this 2.03ct lab-grown round diamond

This 2.03ct lab-grown round sits in the two to three carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451057442 or 451057442. Listed at 12 retailers as of November 5, 2026, with prices from £892 to £6,378, a £5,486 spread on the same certified stone. Moon Ocean lists it at £6,378. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.03
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451057442
Dimensions8.28 × 8.29 × 4.88 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.28 mm8.29 mm2.03 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451057442
Side View
Table 58.5%Crown 32°Girdle: UNDPavilion 40.4°Culet: NoneDepth 58.9%

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 5
Current: £6,378 GBP|Low: £892 GBP|High: £8,213 GBP|Avg: £3,446 GBP|-1.7%
Moon Ocean
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
November 5, 2026
Retailer 7£892 GBP
Retailer 9£1,979 GBP
Retailer 12£2,152 GBP
Retailer 14£2,216 GBP
Retailer 3£2,295 GBP
Retailer 10£2,295 GBP
Retailer 4£2,415 GBP
Retailer 5£2,780 GBP
Retailer 13£3,155 GBP
Retailer 8£3,368 GBP
Retailer 11£3,572 GBP
Retailer 2£6,145 GBP
Moon Ocean£6,378 GBP
Retailer 6£8,213 GBP

39 data points across 14 retailers

12 retailers£892 GBP to £6,378 GBP

A
Cheapest Retailer
-
£892 GBP
B+
Retailer 2
-
£1,979 GBP
View
B+
Retailer 3
-
£2,152 GBP
View
B+
Retailer 4
-
£2,216 GBP
View
Final sale: no returns
Retailer 5
-
£2,295 GBP
View
Price last confirmed 25 days ago
B+
Retailer 6
-
£2,295 GBP
View
B+
Retailer 7
-
£2,415 GBP
View
B
Retailer 8
-
£3,155 GBP
View
B
Retailer 9
-
£3,368 GBP
View
B
Retailer 10
-
£3,572 GBP
View
B
Retailer 11
-
£6,145 GBP
View
Most Expensive
B
Moon Ocean
NVL-66E499149-442 · Nov 5
£6,378 GBP
View
11 more retailers have this diamond
Prices start from £892 GBPSave up to £5,486 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 Round
£892 GBP