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Marquise|Lab Grown|IGI

0.51ct D FL Marquise Lab Grown Diamond

VG • D/FL • IGI LG845658670

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG845658670

Diamond specifications and retailer prices

From $320 AUD
$225 USD
As of November 1, 2026
Save $1,387 AUD (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,707 AUD at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 0.51ct lab-grown marquise diamond

This 0.51ct lab-grown marquise sits in the half to three-quarter carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG845658670 or 845658670. Listed at 15 retailers as of November 1, 2026, with prices from $320 to $1,707, a $1,387 spread on the same certified stone. Reve Diamonds lists it at $1,707. 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
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845658670
Dimensions7.99 × 4.13 × 2.59 mm
L/W Ratio1.93
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.99 mm4.13 mm0.51 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845658670
Side View
Table 59.0%Crown 35.1°Girdle: Slightly ThickPavilion 39.4°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $333 AUD|Low: $320 AUD|High: $1,707 AUD|Avg: $840 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Reve Diamonds
November 1, 2026
Retailer 13$320 AUD
Retailer 1$333 AUD
Retailer 9$356 AUD
Retailer 2$401 AUD
Retailer 4$512 AUD
Retailer 3$616 AUD
Retailer 12$641 AUD
Retailer 7$647 AUD
Retailer 8$654 AUD
Retailer 6$966 AUD
Retailer 10$1,145 AUD
Retailer 11$1,149 AUD
Retailer 5$1,221 AUD
Retailer 14$1,674 AUD
Reve Diamonds$1,707 AUD

6 data points across 15 retailers

15 retailers$320 AUD to $1,707 AUD

A
Cheapest Retailer
-
$320 AUD
$225 USD
Final sale: no returns
A
Retailer 2
-
$333 AUD
$234 USD
View
A
Retailer 3
-
$356 AUD
$250 USD
View
A
Retailer 4
-
$401 AUD
HK$2,200 HKD
View
A
Retailer 5
-
$512 AUD
$360 USD
View
B+
Retailer 6
-
$616 AUD
$433 USD
View
B+
Retailer 7
-
$641 AUD
$450 USD
View
B+
Retailer 8
-
$647 AUD
ZAR 7,344 ZAR
View
B+
Retailer 9
-
$654 AUD
£362 GBP
View
B+
Retailer 10
-
$966 AUD
SGD 917 SGD
View
B
Retailer 11
-
$1,145 AUD
$804 USD
View
B
Retailer 12
-
$1,149 AUD
$807 USD
View
B
Retailer 13
-
$1,221 AUD
$858 USD
View
B
Retailer 14
-
$1,674 AUD
£926 GBP
View
Most Expensive
B
Reve Diamonds
2828CD641 · Nov 1
$1,707 AUD
$1,199 USD
View
14 more retailers have this diamond
Prices start from $320 AUDSave up to $1,387 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.

A
0.51ct Marquise
$320 AUD