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Radiant|Lab Grown|IGI

1.75ct J VS1 Radiant Lab Grown Diamond

ID • J/VS1 • IGI LG512220516

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG512220516

Diamond specifications and retailer prices

From £725 GBP
As of November 6, 2026
Save £4,006 GBP (85%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £4,731 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.75ct lab-grown radiant diamond

This 1.75ct lab-grown radiant sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG512220516 or 512220516. Listed at 12 retailers as of November 5, 2026, with prices from £725 to £4,731, a £4,006 spread on the same certified stone. MOH London lists it at £4,731. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.75
Carat
J
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.3°
Pavilion angle26°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512220516
Dimensions7.77 × 6.11 × 3.78 mm
L/W Ratio1.27
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.77 mm6.11 mm1.75 ctJ / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512220516
Side View
Table 67.5%Crown 40.3°Girdle: STK-THKPavilion 26°Culet: NoneDepth 61.9%

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: £4,731 GBP|Low: £725 GBP|High: £4,807 GBP|Avg: £2,486 GBP|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 5, 2026
Retailer 6£725 GBP
Retailer 8£1,431 GBP
Retailer 12£1,558 GBP
Retailer 13£1,603 GBP
Retailer 9£1,661 GBP
Retailer 3£1,786 GBP
Retailer 4£2,129 GBP
Retailer 10£2,601 GBP
Retailer 7£2,727 GBP
Retailer 2£3,056 GBP
Retailer 11£3,113 GBP
MOH London£4,731 GBP
Retailer 5£4,755 GBP

22 data points across 13 retailers

12 retailers£725 GBP to £4,731 GBP

A
Cheapest Retailer
-
£725 GBP
B+
Retailer 2
-
£1,431 GBP
View
B
Retailer 3
-
£1,558 GBP
View
B+
Retailer 4
-
£1,603 GBP
View
Final sale: no returns
Retailer 5
-
£1,661 GBP
View
Price last confirmed 27 days ago
B+
Retailer 6
-
£1,661 GBP
View
B+
Retailer 7
-
£1,786 GBP
View
B
Retailer 8
-
£2,601 GBP
View
B
Retailer 9
-
£2,727 GBP
View
B
Retailer 10
-
£3,056 GBP
View
B
Retailer 11
-
£3,113 GBP
View
Most Expensive
B
MOH London
LG512220516 · Nov 5
£4,731 GBP
View
11 more retailers have this diamond
Prices start from £725 GBPSave up to £4,006 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
1.75ct Radiant
£725 GBP