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Round|Lab Grown|IGI

0.65ct J SI1 Round Lab Grown Diamond

VG • J/SI1 • IGI LGS3B38479

Certificate IGI LGS3B38479

Diamond specifications and retailer prices

From £382 GBP
₹48,726 INR
As of October 31, 2026
Save £307 GBP (45%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £689 GBP at Yorxs · As of October 30, 2026
View at Yorxs

About this 0.65ct lab-grown round diamond

This 0.65ct lab-grown round sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LGS3B38479 or S3B38479. Listed at 2 retailers as of October 30, 2026, with prices from £382 to £689, a £307 spread on the same certified stone. Yorxs lists it at £689. 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

0.65
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginLab Grown
Grading LabIGI
CertificateIGI LGS3B38479
Dimensions5.48 × 5.49 × 3.48 mm
L/W Ratio1.00
Top View
5.48 mm5.49 mm0.65 ctJ / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateIGI LGS3B38479
Side View
Table 58.5%CrownGirdle: MED-THKPavilionCuletDepth 63.5%

Caratlytics Score

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

Last verified: Oct 31
Current: £382 GBP|Low: £381 GBP|High: £689 GBP|Avg: £531 GBP|-1.2%
Retailer 1
Yorxs
October 31, 2026
Retailer 1£382 GBP
Yorxs£689 GBP

44 data points across 2 retailers

2 retailers£382 GBP to £689 GBP

B+
Cheapest Retailer
-
£382 GBP
₹48,726 INR
Most Expensive
C
Yorxs
MF 194 · Oct 30
£689 GBP
€879 EUR
View
1 more retailer has this diamond
Prices start from £382 GBPSave up to £307 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+
0.65ct Round
£382 GBP