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Marquise|Lab Grown|IGI

0.51ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG816662575

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG816662575

Diamond specifications and retailer prices

From $330 AUD
$232 USD
As of October 30, 2026
Save $1,513 AUD (82%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,844 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 top-tier cut grade and certified by IGI LG816662575 or 816662575. Listed at 17 retailers as of October 30, 2026, with prices from $330 to $1,844, a $1,513 spread on the same certified stone. Reve Diamonds lists it at $1,844. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816662575
Dimensions7.84 × 4.24 × 2.68 mm
L/W Ratio1.85
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
7.84 mm4.24 mm0.51 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816662575
Side View
Table 61.0%Crown 36.5°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 63.2%

Caratlytics Score

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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: Oct 30
Current: $821 AUD|Low: $330 AUD|High: $1,855 AUD|Avg: $1,000 AUD|+0.6%
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
Retailer 15
Retailer 16
Reve Diamonds
November 2, 2026
Retailer 16$330 AUD
Retailer 2$369 AUD
Retailer 15$383 AUD
Retailer 7$404 AUD
Retailer 12$410 AUD
Retailer 8$555 AUD
Retailer 9$705 AUD
Retailer 11$740 AUD
Retailer 5$819 AUD
Retailer 1$821 AUD
Retailer 4$859 AUD
Retailer 6$1,317 AUD
Retailer 14$1,453 AUD
Retailer 3$1,695 AUD
Retailer 13$1,771 AUD
Retailer 10$1,813 AUD
Reve Diamonds$1,844 AUD

28 data points across 17 retailers

17 retailers$330 AUD to $1,844 AUD

A
Cheapest Retailer
-
$330 AUD
$232 USD
A
Retailer 2
-
$369 AUD
$259 USD
View
Final sale: no returns
A
Retailer 3
-
$383 AUD
$269 USD
View
A
Retailer 4
-
$404 AUD
$284 USD
View
A
Retailer 5
-
$410 AUD
$288 USD
View
A
Retailer 6
-
$555 AUD
$390 USD
View
B+
Retailer 7
-
$705 AUD
$495 USD
View
B+
Retailer 8
-
$740 AUD
$520 USD
View
B+
Retailer 9
-
$819 AUD
$575 USD
View
B+
Retailer 10
-
$821 AUD
ZAR 9,315 ZAR
View
Retailer 11
-
$859 AUD
€575 EUR
View
Price last confirmed 7 days ago
B
Retailer 12
-
$1,317 AUD
CA$1,285 CAD
View
B
Retailer 13
-
$1,453 AUD
$1,021 USD
View
B
Retailer 14
-
$1,695 AUD
$1,191 USD
View
B
Retailer 15
-
$1,771 AUD
$1,244 USD
View
B
Retailer 16
-
$1,813 AUD
£1,003 GBP
View
Most Expensive
B
Reve Diamonds
45B96CC16 · Nov 1
$1,844 AUD
$1,295 USD
View
16 more retailers have this diamond
Prices start from $330 AUDSave up to $1,513 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
$330 AUD