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Marquise|Lab Grown|UNKNOWN

0.50ct H SI1 Marquise Lab Grown Diamond

ID • H/SI1 • UNKNOWN 50218514

Certificate UNKNOWN 50218514

Diamond specifications and retailer prices

From €147 EUR
$164 USD
As of November 2, 2026
Save €438 EUR (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €584 EUR at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

About this 0.5ct lab-grown marquise diamond

This 0.5ct lab-grown marquise sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by UNKNOWN 50218514. Listed at 5 retailers as of October 31, 2026, with prices from €147 to €584, a €438 spread on the same certified stone. NZ Jewellers lists it at €584. 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

0.50
Carat
H
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabUNKNOWN
CertificateUNKNOWN 50218514
Dimensions8.03 × 4.23 × 2.64 mm
L/W Ratio1.90
Top View
8.03 mm4.23 mm0.50 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateUNKNOWN 50218514
Side View
Table 59.4%CrownGirdlePavilionCuletDepth 62.5%

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 2
Current: €584 EUR|Low: €141 EUR|High: €584 EUR|Avg: €271 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 8, 2026
Retailer 2€147 EUR
Retailer 5€170 EUR
Retailer 3€182 EUR
Retailer 4€328 EUR
NZ Jewellers€584 EUR

6 data points across 5 retailers

5 retailers€147 EUR to €584 EUR

A
Cheapest Retailer
-
€147 EUR
$164 USD
B+
Retailer 2
-
€170 EUR
$190 USD
View
B+
Retailer 3
-
€182 EUR
$203 USD
View
B
Retailer 4
-
€328 EUR
$366 USD
View
Most Expensive
B
NZ Jewellers
d6215609-5929-4e7a-8e05-e4db627463ff · Oct 31
€584 EUR
$653 USD
View
4 more retailers have this diamond
Prices start from €147 EURSave up to €438 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
0.50ct Marquise
€147 EUR