Round|Lab Grown|UNKNOWN

0.31ct I VVS2 Round Lab Grown Diamond

EX • I/VVS2 • UNKNOWN 311185514

Certificate UNKNOWN 311185514

Diamond specifications and retailer prices

From £120 GBP
$161 USD
As of October 29, 2026
Save £358 GBP (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £478 GBP at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 0.31ct lab-grown round diamond

This 0.31ct lab-grown round sits in the sub-half-carat band, graded I colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by UNKNOWN 311185514. Listed at 5 retailers as of October 27, 2026, with prices from £120 to £478, a £358 spread on the same certified stone. NZ Jewellers lists it at £478. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.31
Carat
I
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabUNKNOWN
CertificateUNKNOWN 311185514
Dimensions4.45 × 4.44 × 2.59 mm
L/W Ratio1.00
Top View
4.45 mm4.44 mm0.31 ctI / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateUNKNOWN 311185514
Side View
Table 59.4%CrownGirdlePavilionCuletDepth 58.2%

Caratlytics Score

How it works →
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: £120 GBP|Low: £115 GBP|High: £270 GBP|Avg: £172 GBP|+4.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 10, 2026
Retailer 1£120 GBP
Retailer 4£140 GBP
Retailer 2£149 GBP
Retailer 3£270 GBP

4 data points across 4 retailers

5 retailers£120 GBP to £478 GBP

A
Cheapest Retailer
-
£120 GBP
$161 USD
B+
Retailer 2
-
£140 GBP
$187 USD
View
B+
Retailer 3
-
£149 GBP
$199 USD
View
B
Retailer 4
-
£270 GBP
$362 USD
View
Most Expensive
C
NZ Jewellers
8ec78f1d-9bcd-4d7b-b372-4507d686ad0e · Oct 27
£478 GBP
$641 USD
View
4 more retailers have this diamond
Prices start from £120 GBPSave up to £358 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
0.31ct Round
£120 GBP