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 $336 USD
As of November 2, 2026
Save $1,004 USD (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,340 USD 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 $336 to $1,340, a $1,004 spread on the same certified stone. NZ Jewellers lists it at $1,340. 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
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Price History

Last verified: Nov 2
Current: $1,340 USD|Low: $323 USD|High: $1,340 USD|Avg: $604 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 8, 2026
Retailer 2$336 USD
Retailer 5$390 USD
Retailer 3$417 USD
Retailer 4$673 USD
NZ Jewellers$1,340 USD

6 data points across 5 retailers

5 retailers$336 USD to $1,340 USD

A
Cheapest Retailer
-
$336 USD
B+
Retailer 2
-
$390 USD
View
B+
Retailer 3
-
$417 USD
View
B
Retailer 4
-
$673 USD
View
Most Expensive
C
NZ Jewellers
ab5b1e00-099c-464b-8be3-d936af020e04 · Oct 31
$1,340 USD
View
4 more retailers have this diamond
Prices start from $336 USDSave up to $1,004 USD

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
$336 USD