Marquise|Lab Grown|IGI

4.54ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG812649300

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG812649300

Diamond specifications and retailer prices

From $16,181 NZD
$9,104 USD
As of November 2, 2026
Save $50,336 NZD (76%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $66,516 NZD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 4.54ct lab-grown marquise diamond

This 4.54ct 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 LG812649300 or 812649300. Listed at 23 retailers as of October 31, 2026, with prices from $16,181 to $66,516, a $50,336 spread on the same certified stone. Taylor and Hart lists it at $66,516. 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

4.54
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812649300
Dimensions17.65 × 8.59 × 5.27 mm
L/W Ratio2.05
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.65 mm8.59 mm4.54 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812649300
Side View
Table 61.0%Crown 37°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.4%

Caratlytics Score

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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: $102,408 NZD|Low: $15,902 NZD|High: $102,408 NZD|Avg: $33,760 NZD
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
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
Retailer 26
Retailer 27
Retailer 28
Taylor and Hart
November 2, 2026
Retailer 15$15,902 NZD
Retailer 8$16,181 NZD
Retailer 4$16,456 NZD
Retailer 17$17,226 NZD
Retailer 27$17,467 NZD
Retailer 14$19,214 NZD
Retailer 18$19,214 NZD
Retailer 24$19,595 NZD
Retailer 25$19,595 NZD
Retailer 3$20,839 NZD
Retailer 26$21,201 NZD
Retailer 16$21,608 NZD
Retailer 23$21,971 NZD
Retailer 12$26,246 NZD
Retailer 2$29,693 NZD
Retailer 13$30,409 NZD
Retailer 20$30,438 NZD
Retailer 9$31,582 NZD
Retailer 5$33,182 NZD
Retailer 22$34,630 NZD
Retailer 10$35,773 NZD
Retailer 6$41,091 NZD
Retailer 28$46,927 NZD
Retailer 19$50,237 NZD
Retailer 7$54,965 NZD
Retailer 11$55,698 NZD
Taylor and Hart$66,516 NZD
Retailer 21$96,943 NZD
Retailer 1$102,408 NZD

22 data points across 29 retailers

23 retailers$16,181 NZD to $66,516 NZD

Retailer 1
-
$15,902 NZD
$8,947 USD
Price last confirmed 31 days ago
A
Retailer 2
-
$16,181 NZD
$9,104 USD
View
A
Retailer 3
-
$16,456 NZD
$9,259 USD
View
A
Retailer 4
-
$17,467 NZD
CA$13,650 CAD
View
A
Retailer 5
-
$18,754 NZD
$10,552 USD
View
Retailer 6
-
$19,214 NZD
$10,811 USD
View
Price last confirmed 30 days ago
A
Retailer 7
-
$19,595 NZD
$11,025 USD
View
A
Retailer 8
-
$19,595 NZD
$11,025 USD
View
A
Retailer 9
-
$21,201 NZD
$11,929 USD
View
Final sale: no returns
Retailer 10
-
$21,608 NZD
$12,158 USD
View
Price last confirmed 33 days ago
A
Retailer 11
-
$21,971 NZD
$12,362 USD
View
B+
Retailer 12
-
$26,246 NZD
£11,628 GBP
View
B+
Retailer 13
-
$29,693 NZD
$16,707 USD
View
B+
Retailer 14
-
$31,582 NZD
£13,992 GBP
View
B+
Retailer 15
-
$33,182 NZD
$18,670 USD
View
B+
Retailer 16
-
$34,630 NZD
£15,342 GBP
View
B+
Retailer 17
-
$35,773 NZD
$20,128 USD
View
B
Retailer 18
-
$41,091 NZD
$23,120 USD
View
B
Retailer 19
-
$46,927 NZD
ZAR 426,548 ZAR
View
B
Retailer 20
-
$54,965 NZD
$30,926 USD
View
B
Retailer 21
-
$55,698 NZD
$31,339 USD
View
Most Expensive
B
Taylor and Hart
5S5SWTS · Oct 31
$66,516 NZD
$37,426 USD
View
21 more retailers have this diamond
Prices start from $16,181 NZDSave up to $50,336 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
4.54ct Marquise
$16,181 NZD