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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 $399 NZD
As of November 3, 2026
Save $1,728 NZD (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,127 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 very-good cut grade and certified by IGI LG845658670 or 845658670. Listed at 15 retailers as of November 3, 2026, with prices from $399 to $2,127, a $1,728 spread on the same certified stone. Reve Diamonds lists it at $2,127. 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

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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: Nov 3
Current: $805 NZD|Low: $399 NZD|High: $2,127 NZD|Avg: $1,037 NZD|-0.4%
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 4, 2026
Retailer 14$399 NZD
Retailer 8$415 NZD
Retailer 10$444 NZD
Retailer 2$498 NZD
Retailer 4$639 NZD
Retailer 3$768 NZD
Retailer 13$798 NZD
Retailer 1$805 NZD
Retailer 9$805 NZD
Retailer 6$1,203 NZD
Retailer 11$1,426 NZD
Retailer 12$1,432 NZD
Retailer 5$1,520 NZD
Retailer 7$2,074 NZD
Reve Diamonds$2,127 NZD

9 data points across 15 retailers

15 retailers$399 NZD to $2,127 NZD

A
Cheapest Retailer
-
$399 NZD
Final sale: no returns
A
Retailer 2
-
$415 NZD
View
A
Retailer 3
-
$444 NZD
View
A
Retailer 4
-
$498 NZD
View
A
Retailer 5
-
$639 NZD
View
B+
Retailer 6
-
$768 NZD
View
B+
Retailer 7
-
$798 NZD
View
B+
Retailer 8
-
$805 NZD
View
B+
Retailer 9
-
$805 NZD
View
B+
Retailer 10
-
$1,203 NZD
View
B
Retailer 11
-
$1,426 NZD
View
B
Retailer 12
-
$1,432 NZD
View
B
Retailer 13
-
$1,520 NZD
View
B
Retailer 14
-
$2,074 NZD
View
Most Expensive
B
Reve Diamonds
2828CD641 · Nov 4
$2,127 NZD
$1,199 USD
View
14 more retailers have this diamond
Prices start from $399 NZDSave up to $1,728 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
$399 NZD