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Round|Lab Grown|IGI

1.37ct H SI2 Round Lab Grown Diamond

VG • H/SI2 • IGI LG395935572

Shape and cutting style on the report: Round brilliant

Certificate IGI LG395935572

Diamond specifications and retailer prices

From £932 GBP
As of November 1, 2026
Save £1,844 GBP (66%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £2,777 GBP at The Diamond Guys · As of November 2, 2026
View at The Diamond Guys

About this 1.37ct lab-grown round diamond

This 1.37ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG395935572 or 395935572. Listed at 3 retailers as of November 1, 2026, with prices from £932 to £2,777, a £1,844 spread on the same certified stone. The Diamond Guys lists it at £2,777. 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

1.37
Carat
H
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle32.5°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG395935572
Dimensions7.31 × 7.32 × 4.20 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeVery Small Faceted
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) and is type IIa
Top View
7.31 mm7.32 mm1.37 ctH / SI2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG395935572
Side View
Table 61.0%Crown 32.5°GirdlePavilion 40.2°Culet: VERDepth 57.4%

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: £932 GBP|Low: £914 GBP|High: £2,777 GBP|Avg: £1,476 GBP|+2.0%
Retailer 1
Retailer 2
The Diamond Guys
November 2, 2026
Retailer 1£932 GBP
Retailer 2£1,053 GBP
The Diamond Guys£2,777 GBP

4 data points across 3 retailers

3 retailers£932 GBP to £2,777 GBP

B
Cheapest Retailer
-
£932 GBP
B
Retailer 2
-
£1,053 GBP
View
Most Expensive
C
The Diamond Guys
1998851522 · Nov 2
£2,777 GBP
$3,737 USD
View
2 more retailers have this diamond
Prices start from £932 GBPSave up to £1,844 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
1.37ct Round
£932 GBP