Marquise|Lab Grown|IGI

4.02ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG743593708

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG743593708

Diamond specifications and retailer prices

From $15,062 AUD

$10,580 USD

As of October 28, 2026

Save $41,421 AUD (73%) vs most expensive(unlock to see where)

31 retailers carry this diamond

Most expensive: $56,483 AUD at Cape Diamonds · As of October 29, 2026

View at Cape Diamonds

About this 4.02ct lab-grown marquise diamond

This 4.02ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG743593708 or 743593708. Listed at 31 retailers as of October 28, 2026, with prices from $15,062 to $56,483, a $41,421 spread on the same certified stone. Cape Diamonds lists it at $56,483. 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

4.02

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle33.9°

Pavilion angle40.2°

OriginLab Grown

Grading LabIGI

CertificateIGI LG743593708

Dimensions16.50 × 8.43 × 5.12 mm

L/W Ratio1.96

Girdle conditionFaceted

Culet sizePointed

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

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG743593708

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 28

Current: $56,483 AUD|Low: $13,415 AUD|High: $99,188 AUD|Avg: $39,098 AUD|-10.8%

Cape Diamonds

Retailer 2

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November 1, 2026

Retailer 23$15,062 AUD

Retailer 18$17,700 AUD

Retailer 12$20,333 AUD

Retailer 7$20,723 AUD

Retailer 9$21,222 AUD

Retailer 24$22,216 AUD

Retailer 10$23,707 AUD

Retailer 3$23,791 AUD

Retailer 25$24,745 AUD

Retailer 8$24,869 AUD

Retailer 14$28,603 AUD

Retailer 22$28,984 AUD

Retailer 13$29,964 AUD

Retailer 15$38,011 AUD

Retailer 20$41,903 AUD

Retailer 6$43,438 AUD

Retailer 17$45,108 AUD

Retailer 19$45,156 AUD

Retailer 2$45,937 AUD

Cape Diamonds$56,483 AUD

Retailer 21$57,685 AUD

Retailer 4$66,152 AUD

Retailer 16$74,031 AUD

Retailer 5$92,847 AUD

Retailer 11$99,188 AUD

31 data points across 25 retailers

31 retailers$15,062 AUD to $56,483 AUD

Cheapest Retailer

$15,062 AUD

$10,580 USD

B+

Retailer 2

$17,700 AUD

$12,433 USD

View

B+

Retailer 3

$20,333 AUD

$14,283 USD

View

B+

Retailer 4

$20,723 AUD

$14,557 USD

View

Retailer 5

$20,723 AUD

$14,557 USD

View

Price last confirmed 24 days ago

Retailer 6

$20,723 AUD

$14,557 USD

View

Price last confirmed 32 days ago

Retailer 7

$21,222 AUD

$14,907 USD

View

Price last confirmed 33 days ago

Retailer 8

$22,216 AUD

£12,288 GBP

View

Price last confirmed 15 days ago

Retailer 9

$23,707 AUD

$16,653 USD

View

Price last confirmed 33 days ago

B+

Retailer 10

$23,791 AUD

$16,712 USD

View

Retailer 11

$24,039 AUD

$16,886 USD

View

Price last confirmed 29 days ago

Retailer 12

$24,039 AUD

$16,886 USD

View

Price last confirmed 21 days ago

B+

Retailer 13

$24,745 AUD

$17,382 USD

View

B+

Retailer 14

$24,869 AUD

$17,469 USD

View

Retailer 15

$24,869 AUD

$17,469 USD

View

Price last confirmed 31 days ago

Retailer 16

$24,869 AUD

$17,469 USD

View

Price last confirmed 21 days ago

Retailer 17

$28,603 AUD

$20,092 USD

View

Final sale: no returns

B+

Retailer 18

$28,984 AUD

$20,360 USD

View

B+

Retailer 19

$29,964 AUD

£16,573 GBP

View

Retailer 20

$38,011 AUD

£21,024 GBP

View

Retailer 21

$41,903 AUD

£23,177 GBP

View

Retailer 22

$43,438 AUD

$30,513 USD

View

Retailer 23

$45,156 AUD

€30,209 EUR

View

Retailer 24

$45,937 AUD

View

Most Expensive

Cape Diamonds

cert_743593708 · Oct 29

$56,483 AUD

ZAR 640,974 ZAR

View

24 more retailers have this diamond

Prices start from $15,062 AUDSave up to $41,421 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.

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