Round|Lab Grown|SGL

1.50ct D SI2 Round Lab Grown Diamond

GD • D/SI2

Diamond specifications and retailer prices

From £147 GBP
As of November 5, 2026
Save £439 GBP (75%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £586 GBP at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

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 D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by SGL. Listed at 22 retailers as of November 3, 2026, with prices from £147 to £586, a £439 spread on the same certified stone. NZ Jewellers lists it at £586. 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

1.50
Carat
D
Colour
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryGood
FluorescenceNone
OriginLab Grown
Grading LabSGL
Dimensions7.29 × 7.37 × 4.36 mm
L/W Ratio1.01
Top View
7.29 mm7.37 mm1.50 ctD / SI2
OriginLab Grown
CutGood
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateSGL
Side View
Table 64.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £586 GBP|Low: £95 GBP|High: £586 GBP|Avg: £226 GBP|+1.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 6£95 GBP
Retailer 3£147 GBP
Retailer 4£171 GBP
Retailer 2£182 GBP
Retailer 5£182 GBP
NZ Jewellers£586 GBP

23 data points across 6 retailers

22 retailers£147 GBP to £586 GBP

Retailer 1
-
£141 GBP
Price last confirmed 30 days ago
B+
Retailer 2
-
£147 GBP
View
Retailer 3
-
£147 GBP
View
Price last confirmed 38 days ago
B+
Retailer 4
-
£147 GBP
View
Retailer 5
-
£147 GBP
View
Price last confirmed 19 days ago
Retailer 6
-
£147 GBP
View
Price last confirmed 25 days ago
Retailer 7
-
£171 GBP
View
Price last confirmed 24 days ago
B+
Retailer 8
-
£171 GBP
View
B+
Retailer 9
-
£171 GBP
View
Retailer 10
-
£180 GBP
View
Price last confirmed 38 days ago
Retailer 11
-
£182 GBP
View
Price last confirmed 18 days ago
B+
Retailer 12
-
£182 GBP
View
Retailer 13
-
£182 GBP
View
Price last confirmed 30 days ago
Retailer 14
-
£182 GBP
View
Price last confirmed 29 days ago
Retailer 15
-
£182 GBP
View
Price last confirmed 21 days ago
B+
Retailer 16
-
£182 GBP
View
Retailer 17
-
£182 GBP
View
Price last confirmed 25 days ago
Retailer 18
-
£586 GBP
View
Price last confirmed 37 days ago
Retailer 19
-
£586 GBP
View
Price last confirmed 30 days ago
C
Retailer 20
-
£586 GBP
View
Retailer 21
-
£586 GBP
View
Price last confirmed 19 days ago
Most Expensive
C
NZ Jewellers
04c24416-4ad8-4651-a9aa-6b744c1bf332 · Nov 3
£586 GBP
$789 USD
View
21 more retailers have this diamond
Prices start from £147 GBPSave up to £439 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
£147 GBP