CaratHunter
Plans
Marquise|Lab Grown|IGI

2.50ct E FL Marquise Lab Grown Diamond

ID • E/FL • IGI LG818684299

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818684299

Diamond specifications and retailer prices

From $6,555 NZD
$3,688 USD
As of October 31, 2026
Save $21,740 NZD (77%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $28,295 NZD at With Clarity · As of October 31, 2026
View at With Clarity

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 LG818684299 or 818684299. Listed at 12 retailers as of October 31, 2026, with prices from $6,555 to $28,295, a $21,740 spread on the same certified stone. With Clarity lists it at $28,295. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818684299
Dimensions13.62 × 7.02 × 4.50 mm
L/W Ratio1.94
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
13.62 mm7.02 mm2.50 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818684299
Side View
Table 56.0%Crown 35°Girdle: STK-THKPavilion 39.9°Culet: NoneDepth 64.1%

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: Oct 31
Current: $15,457 NZD|Low: $6,555 NZD|High: $28,295 NZD|Avg: $15,676 NZD|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
With Clarity
November 1, 2026
Retailer 7$6,555 NZD
Retailer 2$8,918 NZD
Retailer 4$9,646 NZD
Retailer 8$10,975 NZD
Retailer 6$11,641 NZD
Retailer 9$15,320 NZD
Retailer 1$15,457 NZD
Retailer 10$18,111 NZD
Retailer 5$18,615 NZD
Retailer 3$19,159 NZD
Retailer 11$25,389 NZD
With Clarity$28,295 NZD

35 data points across 12 retailers

12 retailers$6,555 NZD to $28,295 NZD

A
Cheapest Retailer
-
$6,555 NZD
$3,688 USD
B+
Retailer 2
-
$8,918 NZD
HK$39,200 HKD
View
B+
Retailer 3
-
$9,646 NZD
£4,274 GBP
View
B+
Retailer 4
-
$10,975 NZD
$6,175 USD
View
B+
Retailer 5
-
$11,641 NZD
€6,238 EUR
View
B
Retailer 6
-
$15,320 NZD
$8,620 USD
View
B
Retailer 7
-
$15,457 NZD
£6,848 GBP
View
B
Retailer 8
-
$18,111 NZD
$10,190 USD
View
B
Retailer 9
-
$18,615 NZD
ZAR 169,203 ZAR
View
Retailer 10
-
$19,159 NZD
$10,780 USD
View
Price last confirmed 9 days ago
B
Retailer 11
-
$25,389 NZD
$14,285 USD
View
Most Expensive
B
With Clarity
818684299 · Oct 31
$28,295 NZD
$15,920 USD
View
11 more retailers have this diamond
Prices start from $6,555 NZDSave up to $21,740 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
$6,555 NZD