CaratHunter
Plans
Radiant|Lab Grown|IGI

1.87ct F SI2 Radiant Lab Grown Diamond

EX • F/SI2 • IGI LG560218217

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

Certificate IGI LG560218217

Diamond specifications and retailer prices

From £223 GBP
As of November 6, 2026
Save £689 GBP (76%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £912 GBP at Michael Trio · As of November 6, 2026
View at Michael Trio

About this 1.87ct lab-grown radiant diamond

This 1.87ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG560218217 or 560218217. Listed at 9 retailers as of November 6, 2026, with prices from £223 to £912, a £689 spread on the same certified stone. Michael Trio lists it at £912. 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

1.87
Carat
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.8°
Pavilion angle28.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG560218217
Dimensions9.58 × 4.92 × 4.02 mm
L/W Ratio1.95
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
9.58 mm4.92 mm1.87 ctF / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG560218217
Side View
Table 70.0%Crown 47.8°Girdle: MediumPavilion 28.7°Culet: NoneDepth 81.7%

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 6
Current: £912 GBP|Low: £223 GBP|High: £912 GBP|Avg: £522 GBP
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8£223 GBP
Retailer 7£286 GBP
Retailer 6£381 GBP
Retailer 3£444 GBP
Retailer 2£460 GBP
Retailer 5£687 GBP
Retailer 4£822 GBP
Michael Trio£912 GBP

41 data points across 8 retailers

9 retailers£223 GBP to £912 GBP

A
Cheapest Retailer
-
£223 GBP
B+
Retailer 2
-
£286 GBP
View
A
Retailer 3
-
£315 GBP
View
B+
Retailer 4
-
£381 GBP
View
B+
Retailer 5
-
£444 GBP
View
A
Retailer 6
-
£460 GBP
View
B
Retailer 7
-
£687 GBP
View
B
Retailer 8
-
£822 GBP
View
Most Expensive
B
Michael Trio
8044477380 · Nov 6
£912 GBP
SGD 1,650 SGD
View
8 more retailers have this diamond
Prices start from £223 GBPSave up to £689 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
1.87ct Radiant
£223 GBP