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Round|Lab Grown|UNKNOWN

0.30ct D SI2 Round Lab Grown Diamond

EX • D/SI2 • UNKNOWN 3522212221

Certificate UNKNOWN 3522212221

Diamond specifications and retailer prices

From £116 GBP
$155 USD
As of October 29, 2026
Save £347 GBP (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £463 GBP at NZ Jewellers · As of October 27, 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by UNKNOWN 3522212221. Listed at 5 retailers as of October 27, 2026, with prices from £116 to £463, a £347 spread on the same certified stone. NZ Jewellers lists it at £463. 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

0.30
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabUNKNOWN
CertificateUNKNOWN 3522212221
Dimensions4.33 × 4.31 × 2.65 mm
L/W Ratio1.00
Top View
4.33 mm4.31 mm0.30 ctD / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateUNKNOWN 3522212221
Side View
Table 56.2%CrownGirdlePavilionCuletDepth 61.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £116 GBP|Low: £112 GBP|High: £264 GBP|Avg: £167 GBP|+4.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 10, 2026
Retailer 1£116 GBP
Retailer 4£135 GBP
Retailer 2£144 GBP
Retailer 3£264 GBP

4 data points across 4 retailers

5 retailers£116 GBP to £463 GBP

A
Cheapest Retailer
-
£116 GBP
$155 USD
B+
Retailer 2
-
£135 GBP
$180 USD
View
B+
Retailer 3
-
£144 GBP
$192 USD
View
B
Retailer 4
-
£264 GBP
$351 USD
View
Most Expensive
C
NZ Jewellers
3646e915-df9f-41dd-a89c-d8aeee06f60f · Oct 27
£463 GBP
$617 USD
View
4 more retailers have this diamond
Prices start from £116 GBPSave up to £347 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
£116 GBP