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Marquise|Lab Grown

0.51ct F SI1 Marquise Lab Grown Diamond

VG • F/SI1 • 76D199A1EE

Diamond specifications and retailer prices

From $177 AUD
$124 USD
As of November 2, 2026
Save $531 AUD (75%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $708 AUD 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 F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade. Listed at 4 retailers as of October 31, 2026, with prices from $177 to $708, a $531 spread on the same certified stone. NZ Jewellers lists it at $708. 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
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading Lab
Certificate76D199A1EE
Dimensions8.29 × 3.96 × 2.65 mm
L/W Ratio2.09
Top View
8.29 mm3.96 mm0.51 ctF / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Certificate76D199A1EE
Side View
Table 56.2%CrownGirdlePavilionCulet: NoneDepth 66.8%

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: Nov 2
Current: $708 AUD|Low: $170 AUD|High: $708 AUD|Avg: $313 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
October 8, 2026
Retailer 2$177 AUD
Retailer 4$205 AUD
Retailer 3$234 AUD
NZ Jewellers$708 AUD

6 data points across 4 retailers

4 retailers$177 AUD to $708 AUD

B+
Cheapest Retailer
-
$177 AUD
$124 USD
B+
Retailer 2
-
$205 AUD
$144 USD
View
B+
Retailer 3
-
$234 AUD
$164 USD
View
Most Expensive
C
NZ Jewellers
0593388c-25a0-4bb0-9afb-92b039fd6bb3 · Oct 31
$708 AUD
$496 USD
View
3 more retailers have this diamond
Prices start from $177 AUDSave up to $531 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
$177 AUD