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Marquise|Lab Grown|IGI

3.09ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG780663326

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780663326

Diamond specifications and retailer prices

From $6,375 NZD
$3,593 USD
As of October 31, 2026
Save $25,585 NZD (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $31,960 NZD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 3.09ct lab-grown marquise diamond

This 3.09ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780663326 or 780663326. Listed at 12 retailers as of October 31, 2026, with prices from $6,375 to $31,960, a $25,585 spread on the same certified stone. Taylor and Hart lists it at $31,960. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.09
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780663326
Dimensions15.09 × 7.69 × 4.66 mm
L/W Ratio1.96
Girdle conditionFaceted
Culet sizePointed
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
15.09 mm7.69 mm3.09 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780663326
Side View
Table 62.0%Crown 32.9°Girdle: Slightly ThickPavilion 40.1°Culet: NoneDepth 60.6%

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 31
Current: $18,561 NZD|Low: $6,375 NZD|High: $41,895 NZD|Avg: $18,827 NZD|-14.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Taylor and Hart
November 1, 2026
Retailer 9$6,375 NZD
Retailer 10$7,654 NZD
Retailer 2$11,356 NZD
Retailer 5$11,619 NZD
Retailer 12$13,795 NZD
Retailer 8$14,714 NZD
Retailer 3$15,326 NZD
Retailer 6$16,253 NZD
Retailer 1$18,561 NZD
Retailer 7$20,813 NZD
Retailer 11$24,123 NZD
Taylor and Hart$31,960 NZD
Retailer 4$41,895 NZD

40 data points across 13 retailers

12 retailers$6,375 NZD to $31,960 NZD

A
Cheapest Retailer
-
$6,375 NZD
$3,593 USD
A
Retailer 2
-
$7,654 NZD
$4,314 USD
View
B+
Retailer 3
-
$11,356 NZD
HK$50,000 HKD
View
B+
Retailer 4
-
$11,619 NZD
£5,156 GBP
View
B+
Retailer 5
-
$13,795 NZD
$7,775 USD
View
B+
Retailer 6
-
$14,714 NZD
€7,898 EUR
View
B+
Retailer 7
-
$15,326 NZD
$8,638 USD
View
B+
Retailer 8
-
$16,253 NZD
$9,160 USD
View
B+
Retailer 9
-
$18,561 NZD
£8,237 GBP
View
B+
Retailer 10
-
$20,813 NZD
ZAR 189,502 ZAR
View
Retailer 11
-
$24,123 NZD
$13,596 USD
View
Price last confirmed 8 days ago
Most Expensive
B
Taylor and Hart
PDT5PTM · Oct 31
$31,960 NZD
$18,013 USD
View
11 more retailers have this diamond
Prices start from $6,375 NZDSave up to $25,585 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
3.09ct Marquise
$6,375 NZD