Marquise|Lab Grown

0.51ct H VS2 Marquise Lab Grown Diamond

VG • H/VS2 • TA50D-71-680

Diamond specifications and retailer prices

From $321 USD
As of October 30, 2026
Save $957 USD (75%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,278 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 VS2 clarity (very-slightly-included), with a very-good cut grade. Listed at 4 retailers as of October 30, 2026, with prices from $321 to $1,278, a $957 spread on the same certified stone. NZ Jewellers lists it at $1,278. 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

0.51
Carat
H
Color
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading Lab
CertificateTA50D-71-680
Dimensions8.90 × 4.17 × 2.39 mm
L/W Ratio2.13
Top View
8.90 mm4.17 mm0.51 ctH / VS2
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateTA50D-71-680
Side View
Table 62.2%CrownGirdlePavilionCuletDepth 57.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,278 USD|Low: $308 USD|High: $1,278 USD|Avg: $558 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
October 8, 2026
Retailer 2$321 USD
Retailer 4$372 USD
Retailer 3$398 USD
NZ Jewellers$1,278 USD

6 data points across 4 retailers

4 retailers$321 USD to $1,278 USD

B+
Cheapest Retailer
-
$321 USD
B
Retailer 2
-
$372 USD
View
B
Retailer 3
-
$398 USD
View
Most Expensive
C
NZ Jewellers
d5a3bde4-d13d-4d89-8c0f-155fed7c7aa1 · Oct 31
$1,278 USD
View
3 more retailers have this diamond
Prices start from $321 USDSave up to $957 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.

B+
0.51ct Marquise
$321 USD