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Marquise|Lab Grown|UNKNOWN

0.51ct H VS1 Marquise Lab Grown Diamond

ID • H/VS1 • UNKNOWN 115211842

Certificate UNKNOWN 115211842

Diamond specifications and retailer prices

From €300 EUR
$336 USD
As of November 2, 2026
Save €895 EUR (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €1,195 EUR at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

About this 0.51ct lab-grown marquise diamond

This 0.51ct lab-grown marquise sits in the half to three-quarter carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by UNKNOWN 115211842. Listed at 5 retailers as of October 31, 2026, with prices from €300 to €1,195, a €895 spread on the same certified stone. NZ Jewellers lists it at €1,195. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
H
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabUNKNOWN
CertificateUNKNOWN 115211842
Dimensions8.49 × 4.04 × 2.51 mm
L/W Ratio2.10
Top View
8.49 mm4.04 mm0.51 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateUNKNOWN 115211842
Side View
Table 60.9%CrownGirdlePavilionCuletDepth 62.2%

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: Nov 2
Current: €1,195 EUR|Low: €288 EUR|High: €1,195 EUR|Avg: €538 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 8, 2026
Retailer 2€300 EUR
Retailer 5€348 EUR
Retailer 3€372 EUR
Retailer 4€600 EUR
NZ Jewellers€1,195 EUR

6 data points across 5 retailers

5 retailers€300 EUR to €1,195 EUR

A
Cheapest Retailer
-
€300 EUR
$336 USD
B+
Retailer 2
-
€348 EUR
$390 USD
View
B+
Retailer 3
-
€372 EUR
$417 USD
View
B
Retailer 4
-
€600 EUR
$673 USD
View
Most Expensive
C
NZ Jewellers
ab5b1e00-099c-464b-8be3-d936af020e04 · Oct 31
€1,195 EUR
$1,340 USD
View
4 more retailers have this diamond
Prices start from €300 EURSave up to €895 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
0.51ct Marquise
€300 EUR