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Marquise|Lab Grown|IGI

4.18ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG817652523

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG817652523

Diamond specifications and retailer prices

From $14,945 NZD
$8,409 USD
As of October 31, 2026
Save $25,181 NZD (63%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $46,090 NZD at Wholesale Diamonds Direct · As of October 24, 2026
View at Wholesale Diamonds Direct

About this 4.18ct lab-grown marquise diamond

This 4.18ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG817652523 or 817652523. Listed at 11 retailers as of October 31, 2026, with a 168% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.18
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817652523
Dimensions16.24 × 8.60 × 5.18 mm
L/W Ratio1.89
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.24 mm8.60 mm4.18 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817652523
Side View
Table 60.0%Crown 34.1°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 60.2%

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: $28,846 NZD|Low: $14,945 NZD|High: $88,941 NZD|Avg: $32,456 NZD|-1.6%
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
Wholesale Diamonds Direct
October 18, 2026
Retailer 12$14,945 NZD
Retailer 18$15,635 NZD
Retailer 11$16,154 NZD
Retailer 7$17,506 NZD
Retailer 14$20,172 NZD
Retailer 4$20,485 NZD
Retailer 3$21,744 NZD
Retailer 6$25,325 NZD
Retailer 15$27,783 NZD
Retailer 16$27,899 NZD
Retailer 1$28,846 NZD
Retailer 5$31,970 NZD
Retailer 2$32,546 NZD
Retailer 17$37,729 NZD
Retailer 13$40,126 NZD
Wholesale Diamonds Direct$46,090 NZD
Retailer 10$49,194 NZD
Retailer 8$56,106 NZD
Retailer 9$88,941 NZD

15 data points across 19 retailers

11 retailers$14,945 NZD to $40,126 NZD

A
Cheapest Retailer
-
$14,945 NZD
$8,409 USD
Retailer 2
-
$15,635 NZD
$8,797 USD
View
Price last confirmed 31 days ago
A
Retailer 3
-
$16,154 NZD
CA$12,624 CAD
View
A
Retailer 4
-
$20,172 NZD
$11,350 USD
View
B+
Retailer 5
-
$27,783 NZD
$15,632 USD
View
B+
Retailer 6
-
$28,846 NZD
$16,230 USD
View
Retailer 7
-
$30,196 NZD
$16,990 USD
View
Price last confirmed 28 days ago
Retailer 8
-
$32,546 NZD
£14,419 GBP
View
Price last confirmed 32 days ago
Retailer 9
-
$37,729 NZD
ZAR 342,941 ZAR
View
Price last confirmed 30 days ago
B
Retailer 10
-
$40,126 NZD
$22,577 USD
View
Most Expensive
Wholesale Diamonds Direct
475659898 · Oct 24
$46,090 NZD
$25,933 USD
View
Price last confirmed 9 days ago
10 more retailers have this diamond
Prices start from $14,945 NZDSave up to $25,181 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
4.18ct Marquise
$14,945 NZD