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Round|Lab Grown|IGI

0.55ct I VVS1 Round Lab Grown Diamond

EX • I/VVS1 • IGI LG645430658

Certificate IGI LG645430658

Diamond specifications and retailer prices

From £351 GBP
As of November 4, 2026
Save £286 GBP (45%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £637 GBP at Yorxs · As of October 31, 2026
View at Yorxs

About this 0.55ct lab-grown round diamond

This 0.55ct lab-grown round sits in the half to three-quarter carat band, graded I colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG645430658 or 645430658. Listed at 2 retailers as of October 31, 2026, with prices from £351 to £637, a £286 spread on the same certified stone. Yorxs lists it at £637. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.55
Carat
I
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG645430658
Dimensions5.32 × 5.34 × 3.22 mm
L/W Ratio1.00
Top View
5.32 mm5.34 mm0.55 ctI / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG645430658
Side View
Table 60.0%CrownGirdlePavilionCuletDepth 60.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 4
Current: £351 GBP|Low: £350 GBP|High: £637 GBP|Avg: £507 GBP|-1.3%
Retailer 1
Retailer 2
Yorxs
November 4, 2026
Retailer 1£351 GBP
Retailer 2£554 GBP
Yorxs£637 GBP

37 data points across 3 retailers

2 retailers£351 GBP to £637 GBP

B+
Cheapest Retailer
-
£351 GBP
Most Expensive
B
Yorxs
RG-4254 · Oct 31
£637 GBP
€819 EUR
View
1 more retailer has this diamond
Prices start from £351 GBPSave up to £286 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
£351 GBP