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Marquise|Lab Grown|IGI

2.50ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG818673798

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818673798

Diamond specifications and retailer prices

From $5,408 NZD
$3,043 USD
As of November 2, 2026
Save $16,438 NZD (75%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $21,846 NZD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 2.5ct lab-grown marquise diamond

This 2.5ct lab-grown marquise sits in the two to three carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818673798 or 818673798. Listed at 19 retailers as of October 31, 2026, with prices from $5,408 to $21,846, a $16,438 spread on the same certified stone. Taylor and Hart lists it at $21,846. 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

2.50
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818673798
Dimensions13.48 × 7.04 × 4.11 mm
L/W Ratio1.91
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.48 mm7.04 mm2.50 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818673798
Side View
Table 62.0%Crown 33.9°Girdle: THK-VTKPavilion 35.3°Culet: NoneDepth 58.4%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: $6,344 NZD|Low: $5,191 NZD|High: $21,846 NZD|Avg: $9,495 NZD|-1.3%
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
Retailer 17
Retailer 18
Taylor and Hart
November 2, 2026
Retailer 2$5,408 NZD
Retailer 7$5,812 NZD
Retailer 16$5,883 NZD
Retailer 3$6,057 NZD
Retailer 5$6,274 NZD
Retailer 8$6,274 NZD
Retailer 6$6,315 NZD
Retailer 1$6,344 NZD
Retailer 17$6,558 NZD
Retailer 14$7,616 NZD
Retailer 4$7,840 NZD
Retailer 11$8,478 NZD
Retailer 15$8,830 NZD
Retailer 9$9,747 NZD
Retailer 10$10,807 NZD
Retailer 18$15,758 NZD
Retailer 12$15,900 NZD
Retailer 13$16,182 NZD
Taylor and Hart$21,846 NZD

33 data points across 19 retailers

19 retailers$5,408 NZD to $21,846 NZD

A
Cheapest Retailer
-
$5,408 NZD
$3,043 USD
A
Retailer 2
-
$5,812 NZD
$3,270 USD
View
A
Retailer 3
-
$5,883 NZD
$3,310 USD
View
A
Retailer 4
-
$6,057 NZD
$3,408 USD
View
Final sale: no returns
Retailer 5
-
$6,274 NZD
$3,530 USD
View
Price last confirmed 20 days ago
A
Retailer 6
-
$6,274 NZD
$3,530 USD
View
A
Retailer 7
-
$6,315 NZD
$3,553 USD
View
A
Retailer 8
-
$6,344 NZD
£2,811 GBP
View
A
Retailer 9
-
$6,558 NZD
$3,690 USD
View
B+
Retailer 10
-
$7,616 NZD
$4,285 USD
View
B+
Retailer 11
-
$7,840 NZD
$4,411 USD
View
B+
Retailer 12
-
$8,478 NZD
£3,756 GBP
View
B+
Retailer 13
-
$8,830 NZD
$4,968 USD
View
B+
Retailer 14
-
$9,747 NZD
$5,484 USD
View
B+
Retailer 15
-
$10,807 NZD
£4,788 GBP
View
B
Retailer 16
-
$15,758 NZD
$8,866 USD
View
B
Retailer 17
-
$15,900 NZD
£7,044 GBP
View
B
Retailer 18
-
$16,182 NZD
ZAR 147,090 ZAR
View
Most Expensive
B
Taylor and Hart
QL501ID · Oct 31
$21,846 NZD
$12,292 USD
View
18 more retailers have this diamond
Prices start from $5,408 NZDSave up to $16,438 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
2.50ct Marquise
$5,408 NZD