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Round|Lab Grown|GIA

1.50ct H SI2 Round Lab Grown Diamond

ID • H/SI2 • GIA 6422595337

Certificate GIA 6422595337

Diamond specifications and retailer prices

From £4,287 GBP
As of November 5, 2026
Save £141 GBP (3%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £4,428 GBP at Jared · As of November 6, 2026
View at Jared

About this 1.5ct lab-grown round diamond

This 1.5ct lab-grown round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6422595337. Listed at 3 retailers as of November 5, 2026, with a relatively tight 3% spread, which is unusual at this carat range and suggests competitive pricing across the listings. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
H
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginLab Grown
Grading LabGIA
CertificateGIA 6422595337
Dimensions7.41 × 7.46 mm
L/W Ratio1.01
Top View
7.41 mm7.46 mm1.50 ctH / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6422595337
Side View
Table 61.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 59.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: £4,428 GBP|Low: £4,287 GBP|High: £4,867 GBP|Avg: £4,581 GBP|-9.0%
Jared
Retailer 2
Retailer 3
October 28, 2026
Retailer 2£4,287 GBP
Retailer 3£4,287 GBP
Jared£4,428 GBP

4 data points across 3 retailers

3 retailers£4,287 GBP to £4,428 GBP

B
Cheapest Retailer
-
£4,287 GBP
B
Retailer 2
-
£4,287 GBP
View
Most Expensive
B
Jared
146737515 · Nov 6
£4,428 GBP
$5,960 USD
View
2 more retailers have this diamond
Prices start from £4,287 GBPSave up to £141 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
1.50ct Round
£4,287 GBP