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Round|Lab Grown|UNKNOWN

0.30ct D SI2 Round Lab Grown Diamond

VG • D/SI2 • UNKNOWN 3519031903

Certificate UNKNOWN 3519031903

Diamond specifications and retailer prices

From €139 EUR
$155 USD
As of October 29, 2026
Save €414 EUR (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €552 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 D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by UNKNOWN 3519031903. Listed at 5 retailers as of October 29, 2026, with prices from €139 to €552, a €414 spread on the same certified stone. NZ Jewellers lists it at €552. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.30
Carat
D
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabUNKNOWN
CertificateUNKNOWN 3519031903
Dimensions4.30 × 4.27 × 2.62 mm
L/W Ratio1.01
Top View
4.30 mm4.27 mm0.30 ctD / SI2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateUNKNOWN 3519031903
Side View
Table 57.1%CrownGirdlePavilionCuletDepth 61.1%

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: Oct 29
Current: €552 EUR|Low: €133 EUR|High: €552 EUR|Avg: €250 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 10, 2026
Retailer 2€139 EUR
Retailer 6€161 EUR
Retailer 3€172 EUR
Retailer 5€172 EUR
Retailer 4€314 EUR
NZ Jewellers€552 EUR

5 data points across 6 retailers

5 retailers€139 EUR to €552 EUR

B+
Cheapest Retailer
-
€139 EUR
$155 USD
B+
Retailer 2
-
€161 EUR
$180 USD
View
B+
Retailer 3
-
€172 EUR
$192 USD
View
B
Retailer 4
-
€314 EUR
$351 USD
View
Most Expensive
C
NZ Jewellers
1db01bbe-bcd2-4725-965b-98f632f6b544 · Oct 30
€552 EUR
$617 USD
View
4 more retailers have this diamond
Prices start from €139 EURSave up to €414 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.

B+
0.30ct Round
€139 EUR