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 $12,960 AUD

$9,104 USD

As of October 31, 2026

Save $40,319 AUD (76%) vs most expensive(unlock to see where)

23 retailers carry this diamond

Most expensive: $53,279 AUD 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 $12,960 to $53,279, a $40,319 spread on the same certified stone. Taylor and Hart lists it at $53,279. 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

Colour

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

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG812649300

Side View

Caratlytics Score

How it works →

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: $27,738 AUD|Low: $11,702 AUD|High: $82,028 AUD|Avg: $27,005 AUD|+1.0%

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 1, 2026

Retailer 15$12,737 AUD

Retailer 8$12,960 AUD

Retailer 3$13,181 AUD

Retailer 17$13,798 AUD

Retailer 25$13,991 AUD

Retailer 14$15,391 AUD

Retailer 18$15,391 AUD

Retailer 22$15,695 AUD

Retailer 23$15,695 AUD

Retailer 2$16,692 AUD

Retailer 24$16,982 AUD

Retailer 16$17,308 AUD

Retailer 12$17,599 AUD

Retailer 27$20,959 AUD

Retailer 28$23,784 AUD

Retailer 13$24,357 AUD

Retailer 20$24,381 AUD

Retailer 9$25,297 AUD

Retailer 4$26,579 AUD

Retailer 1$27,738 AUD

Retailer 10$28,654 AUD

Retailer 5$32,914 AUD

Retailer 26$37,588 AUD

Retailer 19$40,240 AUD

Retailer 7$44,026 AUD

Retailer 11$44,614 AUD

Taylor and Hart$53,279 AUD

Retailer 21$77,650 AUD

Retailer 6$82,028 AUD

22 data points across 29 retailers

23 retailers$12,960 AUD to $53,279 AUD

Retailer 1

$12,737 AUD

$8,947 USD

Price last confirmed 30 days ago

Retailer 2

$12,960 AUD

$9,104 USD

View

Retailer 3

$13,181 AUD

$9,259 USD

View

Retailer 4

$13,991 AUD

CA$13,650 CAD

View

Retailer 5

$15,022 AUD

$10,552 USD

View

Retailer 6

$15,391 AUD

$10,811 USD

View

Price last confirmed 29 days ago

Retailer 7

$15,695 AUD

$11,025 USD

View

Retailer 8

$15,695 AUD

$11,025 USD

View

Retailer 9

$16,982 AUD

$11,929 USD

View

Final sale: no returns

Retailer 10

$17,308 AUD

$12,158 USD

View

Price last confirmed 32 days ago

Retailer 11

$17,599 AUD

$12,362 USD

View

B+

Retailer 12

$20,959 AUD

£11,592 GBP

View

B+

Retailer 13

$23,784 AUD

$16,707 USD

View

B+

Retailer 14

$25,297 AUD

£13,992 GBP

View

B+

Retailer 15

$26,579 AUD

$18,670 USD

View

B+

Retailer 16

$27,738 AUD

£15,342 GBP

View

B+

Retailer 17

$28,654 AUD

$20,128 USD

View

Retailer 18

$32,914 AUD

$23,120 USD

View

Retailer 19

$37,588 AUD

ZAR 426,548 ZAR

View

Retailer 20

$44,026 AUD

$30,926 USD

View

Retailer 21

$44,614 AUD

$31,339 USD

View

Most Expensive

Taylor and Hart

5S5SWTS · Oct 31

$53,279 AUD

$37,426 USD

View

21 more retailers have this diamond

Prices start from $12,960 AUDSave up to $40,319 AUD

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.

Similar diamonds

4.54ct Marquise

$12,960 AUD