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Round|Lab Grown|IGI

3.55ct H VS1 Round Lab Grown Diamond

EX • H/VS1

Diamond specifications and retailer prices

From £363 GBP
$486 USD
As of October 31, 2026
Save £198 GBP (35%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £561 GBP at Moon Ocean · As of October 30, 2026
View at Moon Ocean

About this 3.55ct lab-grown round diamond

This 3.55ct lab-grown round sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI. Listed at 2 retailers as of October 30, 2026, with prices from £363 to £561, a £198 spread on the same certified stone. Moon Ocean lists it at £561. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.55
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions9.81 × 9.76 × 5.96 mm
L/W Ratio1.01
Top View
9.81 mm9.76 mm3.55 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 58.0%CrownGirdle: MediumPavilionCulet: NoneDepth 61.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: £561 GBP|Low: £324 GBP|High: £3,755 GBP|Avg: £1,135 GBP|+1.1%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 3£324 GBP
Retailer 2£363 GBP
Retailer 5£396 GBP
Moon Ocean£561 GBP
Retailer 7£880 GBP
Retailer 4£1,292 GBP
Retailer 6£3,755 GBP

34 data points across 7 retailers

2 retailers£363 GBP to £561 GBP

A
Cheapest Retailer
-
£363 GBP
$486 USD
Most Expensive
B+
Moon Ocean
NVL-C5E21D047-065 · Oct 30
£561 GBP
View
1 more retailer has this diamond
Prices start from £363 GBPSave up to £198 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
3.55ct Round
£363 GBP