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0.55ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • GIA 1558493615

Certificate GIA 1558493615

Diamond specifications and retailer prices

From £1,139 GBP
$1,526 USD
As of November 1, 2026
Save £1,525 GBP (57%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £2,664 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.55ct lab-grown round diamond

This 0.55ct lab-grown round sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1558493615. Listed at 2 retailers as of October 29, 2026, with prices from £1,139 to £2,664, a £1,525 spread on the same certified stone. MOH London lists it at £2,664. 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
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 1558493615
Dimensions5.25 × 5.23 × 3.28 mm
L/W Ratio1.00
Top View
5.25 mm5.23 mm0.55 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558493615
Side View
Table 55.0%CrownGirdlePavilionCuletDepth 62.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 1
Current: £2,664 GBP|Low: £1,139 GBP|High: £2,744 GBP|Avg: £1,825 GBP|-2.9%
MOH London
Retailer 2
October 29, 2026
Retailer 2£1,139 GBP
MOH London£2,664 GBP

4 data points across 2 retailers

2 retailers£1,139 GBP to £2,664 GBP

B
Cheapest Retailer
-
£1,139 GBP
$1,526 USD
Most Expensive
B
MOH London
1558493615 · Oct 29
£2,664 GBP
View
1 more retailer has this diamond
Prices start from £1,139 GBPSave up to £1,525 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
£1,139 GBP