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Round|Lab Grown|IGI

0.66ct H VS1 Round Lab Grown Diamond

VG • H/VS1 • IGI LG628473355

Shape and cutting style on the report: Round brilliant

Certificate IGI LG628473355

Diamond specifications and retailer prices

From £221 GBP
$297 USD
As of November 1, 2026
Save £741 GBP (77%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £962 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.66ct lab-grown round diamond

This 0.66ct lab-grown round sits in the half to three-quarter carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG628473355 or 628473355. Listed at 3 retailers as of November 1, 2026, with prices from £221 to £962, a £741 spread on the same certified stone. MOH London lists it at £962. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.66
Carat
H
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle34.9°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628473355
Dimensions5.63 × 5.57 × 3.46 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.63 mm5.57 mm0.66 ctH / VS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG628473355
Side View
Table 57.0%Crown 34.9°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.8%

Caratlytics Score

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

Last verified: Nov 1
Current: £962 GBP|Low: £156 GBP|High: £974 GBP|Avg: £425 GBP|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 2£221 GBP
Retailer 4£252 GBP
Retailer 3£289 GBP
Retailer 5£465 GBP
MOH London£962 GBP

9 data points across 5 retailers

3 retailers£221 GBP to £962 GBP

B+
Cheapest Retailer
-
£221 GBP
$297 USD
B+
Retailer 2
-
£289 GBP
$388 USD
View
Most Expensive
B
MOH London
LG628473355 · Nov 1
£962 GBP
View
2 more retailers have this diamond
Prices start from £221 GBPSave up to £741 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+
0.66ct Round
£221 GBP