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Radiant|Lab Grown|IGI

1.85ct H SI1 Radiant Lab Grown Diamond

ID • H/SI1 • IGI LG528224211

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

Certificate IGI LG528224211

Diamond specifications and retailer prices

From £917 GBP
$1,230 USD
As of November 2, 2026
Save £3,426 GBP (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £4,343 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.85ct lab-grown radiant diamond

This 1.85ct lab-grown radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG528224211 or 528224211. Listed at 11 retailers as of November 1, 2026, with prices from £917 to £4,343, a £3,426 spread on the same certified stone. MOH London lists it at £4,343. 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

1.85
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.4°
Pavilion angle31.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG528224211
Dimensions8.30 × 6.06 × 4.20 mm
L/W Ratio1.37
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
8.30 mm6.06 mm1.85 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG528224211
Side View
Table 64.0%Crown 41.4°Girdle: Slightly ThickPavilion 31.2°Culet: NoneDepth 69.3%

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 2
Current: £4,343 GBP|Low: £917 GBP|High: £4,401 GBP|Avg: £2,198 GBP
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 1, 2026
Retailer 7£917 GBP
Retailer 6£1,311 GBP
Retailer 11£1,426 GBP
Retailer 12£1,468 GBP
Retailer 8£1,521 GBP
Retailer 5£1,550 GBP
Retailer 13£1,647 GBP
Retailer 3£2,031 GBP
Retailer 9£2,386 GBP
Retailer 2£2,557 GBP
Retailer 10£2,850 GBP
MOH London£4,343 GBP
Retailer 4£4,353 GBP

19 data points across 13 retailers

11 retailers£917 GBP to £4,343 GBP

A
Cheapest Retailer
-
£917 GBP
$1,230 USD
B+
Retailer 2
-
£1,311 GBP
$1,759 USD
View
B+
Retailer 3
-
£1,426 GBP
$1,914 USD
View
B+
Retailer 4
-
£1,468 GBP
$1,970 USD
View
Final sale: no returns
Retailer 5
-
£1,521 GBP
$2,041 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
£1,521 GBP
$2,041 USD
View
B+
Retailer 7
-
£1,647 GBP
$2,210 USD
View
B
Retailer 8
-
£2,386 GBP
$3,202 USD
View
B
Retailer 9
-
£2,557 GBP
$3,432 USD
View
B
Retailer 10
-
£2,850 GBP
$3,825 USD
View
Most Expensive
B
MOH London
LG528224211 · Nov 1
£4,343 GBP
View
10 more retailers have this diamond
Prices start from £917 GBPSave up to £3,426 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
1.85ct Radiant
£917 GBP