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Round|Lab Grown|UNKNOWN

0.46ct D SI2 Round Lab Grown Diamond

EX • D/SI2 • UNKNOWN 3519721972

Certificate UNKNOWN 3519721972

Diamond specifications and retailer prices

From £186 GBP
As of November 5, 2026
Save £556 GBP (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £742 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.46ct lab-grown round diamond

This 0.46ct lab-grown round sits in the sub-half-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by UNKNOWN 3519721972. Listed at 5 retailers as of November 5, 2026, with prices from £186 to £742, a £556 spread on the same certified stone. NZ Jewellers lists it at £742. 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

0.46
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabUNKNOWN
CertificateUNKNOWN 3519721972
Dimensions4.94 × 4.90 × 3.10 mm
L/W Ratio1.01
Top View
4.94 mm4.90 mm0.46 ctD / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateUNKNOWN 3519721972
Side View
Table 56.7%CrownGirdlePavilionCuletDepth 63.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: £186 GBP|Low: £178 GBP|High: £386 GBP|Avg: £257 GBP|+4.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 10, 2026
Retailer 1£186 GBP
Retailer 4£215 GBP
Retailer 2£230 GBP
Retailer 3£386 GBP

4 data points across 4 retailers

5 retailers£186 GBP to £742 GBP

A
Cheapest Retailer
-
£186 GBP
B+
Retailer 2
-
£215 GBP
View
B+
Retailer 3
-
£230 GBP
View
B
Retailer 4
-
£386 GBP
View
Most Expensive
C
NZ Jewellers
cfb32da5-9316-4e9e-a0eb-e978409945d7 · Nov 5
£742 GBP
$998 USD
View
4 more retailers have this diamond
Prices start from £186 GBPSave up to £556 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.

A
0.46ct Round
£186 GBP