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Round|Lab Grown|UNKNOWN

0.30ct H VS1 Round Lab Grown Diamond

EX • H/VS1 • UNKNOWN 35421285

Certificate UNKNOWN 35421285

Diamond specifications and retailer prices

From £123 GBP
$165 USD
As of October 29, 2026
Save £369 GBP (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £493 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.3ct lab-grown round diamond

This 0.3ct lab-grown round sits in the sub-half-carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by UNKNOWN 35421285. Listed at 5 retailers as of October 29, 2026, with prices from £123 to £493, a £369 spread on the same certified stone. NZ Jewellers lists it at £493. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.30
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabUNKNOWN
CertificateUNKNOWN 35421285
Dimensions4.35 × 4.31 × 2.64 mm
L/W Ratio1.01
Top View
4.35 mm4.31 mm0.30 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateUNKNOWN 35421285
Side View
Table 60.7%CrownGirdlePavilionCuletDepth 61.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £123 GBP|Low: £119 GBP|High: £275 GBP|Avg: £176 GBP|+3.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 10, 2026
Retailer 1£123 GBP
Retailer 4£143 GBP
Retailer 2£153 GBP
Retailer 3£275 GBP

4 data points across 4 retailers

5 retailers£123 GBP to £493 GBP

A
Cheapest Retailer
-
£123 GBP
$165 USD
B+
Retailer 2
-
£143 GBP
$192 USD
View
B+
Retailer 3
-
£153 GBP
$205 USD
View
B
Retailer 4
-
£275 GBP
$368 USD
View
Most Expensive
C
NZ Jewellers
70914f54-6469-453d-8e15-4e47329afb8a · Oct 30
£493 GBP
$660 USD
View
4 more retailers have this diamond
Prices start from £123 GBPSave up to £369 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
0.30ct Round
£123 GBP