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Marquise|Lab Grown

0.51ct E SI2 Marquise Lab Grown Diamond

E/SI2 • 27DC3D9EBE

Diamond specifications and retailer prices

From $134 AUD
$94 USD
As of October 27, 2026
Save $397 AUD (75%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $531 AUD 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 27, 2026, with prices from $134 to $531, a $397 spread on the same certified stone. NZ Jewellers lists it at $531. 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 27
Current: $531 AUD|Low: $128 AUD|High: $531 AUD|Avg: $232 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
October 8, 2026
Retailer 2$134 AUD
Retailer 3$154 AUD
Retailer 4$175 AUD
NZ Jewellers$531 AUD

5 data points across 4 retailers

4 retailers$134 AUD to $531 AUD

B+
Cheapest Retailer
-
$134 AUD
$94 USD
B+
Retailer 2
-
$154 AUD
$108 USD
View
B+
Retailer 3
-
$175 AUD
$123 USD
View
Most Expensive
C
NZ Jewellers
d803de67-22f3-4c0a-b613-69cbde0fc99f · Oct 28
$531 AUD
$373 USD
View
3 more retailers have this diamond
Prices start from $134 AUDSave up to $397 AUD

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
$134 AUD