Round|Lab Grown|UNKNOWN

0.30ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • UNKNOWN 33173999

Certificate UNKNOWN 33173999

Diamond specifications and retailer prices

From €115 EUR
$128 USD
As of November 1, 2026
Save €341 EUR (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €456 EUR 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by UNKNOWN 33173999. Listed at 5 retailers as of October 30, 2026, with prices from €115 to €456, a €341 spread on the same certified stone. NZ Jewellers lists it at €456. 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
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabUNKNOWN
CertificateUNKNOWN 33173999
Dimensions4.42 × 4.38 × 2.57 mm
L/W Ratio1.01
Top View
4.42 mm4.38 mm0.30 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateUNKNOWN 33173999
Side View
Table 59.1%CrownGirdlePavilionCuletDepth 58.3%

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: Nov 1
Current: €115 EUR|Low: €110 EUR|High: €270 EUR|Avg: €167 EUR|+4.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 10, 2026
Retailer 1€115 EUR
Retailer 4€132 EUR
Retailer 2€141 EUR
Retailer 3€270 EUR

4 data points across 4 retailers

5 retailers€115 EUR to €456 EUR

A
Cheapest Retailer
-
€115 EUR
$128 USD
B+
Retailer 2
-
€132 EUR
$148 USD
View
B+
Retailer 3
-
€141 EUR
$158 USD
View
B
Retailer 4
-
€270 EUR
$302 USD
View
Most Expensive
C
NZ Jewellers
d0976532-cab9-41f2-9b4d-c2a09c0f3258 · Oct 30
€456 EUR
$509 USD
View
4 more retailers have this diamond
Prices start from €115 EURSave up to €341 EUR

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
€115 EUR