CaratHunter
Plans
Round|Lab Grown|IGI

0.55ct H SI1 Round Lab Grown Diamond

EX • H/SI1 • IGI LG285262

Certificate IGI LG285262

Diamond specifications and retailer prices

From £496 GBP
$665 USD
As of November 1, 2026
Save £304 GBP (38%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £800 GBP at Fonder Diamond · As of October 31, 2026
View at Fonder Diamond

About this 0.55ct lab-grown round diamond

This 0.55ct lab-grown round sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG285262 or 285262. Listed at 3 retailers as of October 31, 2026, with prices from £496 to £800, a £304 spread on the same certified stone. Fonder Diamond lists it at £800. 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

0.55
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginLab Grown
Grading LabIGI
CertificateIGI LG285262
Dimensions5.31 × 5.34 mm
L/W Ratio1.01
Top View
5.31 mm5.34 mm0.55 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI LG285262
Side View
Table 60.0%CrownGirdle: MED - STKPavilionCulet: NDepth 59.4%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £800 GBP|Low: £482 GBP|High: £1,843 GBP|Avg: £797 GBP|+0.6%
Fonder Diamond
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 13, 2026
Retailer 3£482 GBP
Retailer 2£483 GBP
Retailer 4£496 GBP
Retailer 5£500 GBP
Fonder Diamond£800 GBP
Retailer 7£975 GBP
Retailer 6£1,843 GBP

5 data points across 7 retailers

3 retailers£496 GBP to £800 GBP

Retailer 1
-
£483 GBP
$647 USD
Price last confirmed 31 days ago
B
Retailer 2
-
£496 GBP
$665 USD
View
Most Expensive
B
Fonder Diamond
96911102 · Oct 31
£800 GBP
SGD 1,449 SGD
View
2 more retailers have this diamond
Prices start from £496 GBPSave up to £304 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.

B
0.55ct Round
£496 GBP