Marquise|Lab Grown

0.51ct E SI2 Marquise Lab Grown Diamond

E/SI2 • 27DC3D9EBE

Diamond specifications and retailer prices

From $167 NZD
$94 USD
As of October 30, 2026
Save $495 NZD (75%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $662 NZD at NZ Jewellers · As of October 28, 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 E colour (colourless) and SI2 clarity (slightly-included). Listed at 4 retailers as of October 28, 2026, with prices from $167 to $662, a $495 spread on the same certified stone. NZ Jewellers lists it at $662. 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
E
Colour
SI2
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading Lab
Certificate27DC3D9EBE
Dimensions4.24 × 8.25 × 2.59 mm
L/W Ratio1.95
Top View
4.24 mm8.25 mm0.51 ctE / SI2
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
Certificate27DC3D9EBE
Side View
Table 60.0%CrownGirdlePavilionCulet: NoneDepth 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 30
Current: $662 NZD|Low: $160 NZD|High: $662 NZD|Avg: $289 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
October 8, 2026
Retailer 2$167 NZD
Retailer 3$192 NZD
Retailer 4$218 NZD
NZ Jewellers$662 NZD

5 data points across 4 retailers

4 retailers$167 NZD to $662 NZD

B+
Cheapest Retailer
-
$167 NZD
$94 USD
B+
Retailer 2
-
$192 NZD
$108 USD
View
B+
Retailer 3
-
$218 NZD
$123 USD
View
Most Expensive
C
NZ Jewellers
d803de67-22f3-4c0a-b613-69cbde0fc99f · Oct 28
$662 NZD
$373 USD
View
3 more retailers have this diamond
Prices start from $167 NZDSave up to $495 NZD

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
$167 NZD