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Marquise|Lab Grown|UNKNOWN

0.30ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • UNKNOWN 310641293

Certificate UNKNOWN 310641293

Diamond specifications and retailer prices

From £129 GBP
$173 USD
As of November 2, 2026
Save £386 GBP (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £515 GBP at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

About this 0.3ct lab-grown marquise diamond

This 0.3ct lab-grown marquise sits in the sub-half-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by UNKNOWN 310641293. Listed at 5 retailers as of October 31, 2026, with prices from £129 to £515, a £386 spread on the same certified stone. NZ Jewellers lists it at £515. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.30
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
OriginLab Grown
Grading LabUNKNOWN
CertificateUNKNOWN 310641293
Dimensions7.19 × 3.31 × 2.21 mm
L/W Ratio2.17
Top View
7.19 mm3.31 mm0.30 ctG / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateUNKNOWN 310641293
Side View
Table 55.7%CrownGirdlePavilionCuletDepth 66.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £515 GBP|Low: £124 GBP|High: £515 GBP|Avg: £238 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 8, 2026
Retailer 2£129 GBP
Retailer 5£150 GBP
Retailer 3£160 GBP
Retailer 4£285 GBP
NZ Jewellers£515 GBP

6 data points across 5 retailers

5 retailers£129 GBP to £515 GBP

B+
Cheapest Retailer
-
£129 GBP
$173 USD
B
Retailer 2
-
£150 GBP
$201 USD
View
B
Retailer 3
-
£160 GBP
$214 USD
View
B
Retailer 4
-
£285 GBP
$382 USD
View
Most Expensive
C
NZ Jewellers
95a08419-8aca-4a52-a72a-6b672f12d835 · Oct 31
£515 GBP
$690 USD
View
4 more retailers have this diamond
Prices start from £129 GBPSave up to £386 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+
0.30ct Marquise
£129 GBP