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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 $412 NZD
As of November 4, 2026
Save $1,882 NZD (82%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,294 NZD at Reve Diamonds · As of November 4, 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 November 4, 2026, with prices from $412 to $2,294, a $1,882 spread on the same certified stone. Reve Diamonds lists it at $2,294. 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

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 4
Current: $2,246 NZD|Low: $412 NZD|High: $2,312 NZD|Avg: $1,240 NZD|-2.8%
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 5, 2026
Retailer 2$412 NZD
Retailer 3$459 NZD
Retailer 16$477 NZD
Retailer 7$504 NZD
Retailer 11$509 NZD
Retailer 8$692 NZD
Retailer 13$878 NZD
Retailer 14$922 NZD
Retailer 5$1,020 NZD
Retailer 12$1,022 NZD
Retailer 4$1,070 NZD
Retailer 6$1,641 NZD
Retailer 9$1,808 NZD
Retailer 10$2,108 NZD
Retailer 15$2,207 NZD
Retailer 1$2,246 NZD
Reve Diamonds$2,294 NZD

31 data points across 17 retailers

17 retailers$412 NZD to $2,294 NZD

A
Cheapest Retailer
-
$412 NZD
A
Retailer 2
-
$459 NZD
View
Final sale: no returns
A
Retailer 3
-
$477 NZD
View
A
Retailer 4
-
$504 NZD
View
A
Retailer 5
-
$509 NZD
View
A
Retailer 6
-
$692 NZD
View
B+
Retailer 7
-
$878 NZD
View
B+
Retailer 8
-
$922 NZD
View
B+
Retailer 9
-
$1,020 NZD
View
B+
Retailer 10
-
$1,022 NZD
View
Retailer 11
-
$1,070 NZD
View
Price last confirmed 11 days ago
B
Retailer 12
-
$1,641 NZD
View
B
Retailer 13
-
$1,808 NZD
View
B
Retailer 14
-
$2,108 NZD
View
B
Retailer 15
-
$2,207 NZD
View
B
Retailer 16
-
$2,246 NZD
View
Most Expensive
B
Reve Diamonds
45B96CC16 · Nov 4
$2,294 NZD
$1,293 USD
View
16 more retailers have this diamond
Prices start from $412 NZDSave up to $1,882 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.

A
0.51ct Marquise
$412 NZD