Marquise|Lab Grown|IGI

4.31ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG793603302

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG793603302

Diamond specifications and retailer prices

From $15,690 NZD

$8,828 USD

As of October 27, 2026

Save $41,842 NZD (73%) vs most expensive(unlock to see where)

24 retailers carry this diamond

Most expensive: $57,532 NZD at Taylor and Hart · As of October 26, 2026

View at Taylor and Hart

About this 4.31ct lab-grown marquise diamond

This 4.31ct 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 LG793603302 or 793603302. Listed at 24 retailers as of October 26, 2026, with prices from $15,690 to $57,532, a $41,842 spread on the same certified stone. Taylor and Hart lists it at $57,532. 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

4.31

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.2°

Pavilion angle40.4°

OriginLab Grown

Grading LabIGI

CertificateIGI LG793603302

Dimensions16.79 × 8.65 × 5.23 mm

L/W Ratio1.94

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 LG793603302

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 27

Current: $28,873 NZD|Low: $15,061 NZD|High: $91,707 NZD|Avg: $31,188 NZD|-3.5%

Retailer 1

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Retailer 23

Taylor and Hart

October 27, 2026

Retailer 22$15,690 NZD

Retailer 4$16,317 NZD

Retailer 20$16,365 NZD

Retailer 14$16,658 NZD

Retailer 9$16,794 NZD

Retailer 11$18,022 NZD

Retailer 6$18,054 NZD

Retailer 2$18,200 NZD

Retailer 3$20,467 NZD

Retailer 23$20,798 NZD

Retailer 5$21,121 NZD

Retailer 12$21,847 NZD

Retailer 7$26,084 NZD

Retailer 10$28,833 NZD

Retailer 1$28,873 NZD

Retailer 19$29,308 NZD

Retailer 17$33,180 NZD

Retailer 18$38,586 NZD

Retailer 21$41,205 NZD

Retailer 15$41,374 NZD

Retailer 8$47,524 NZD

Retailer 16$50,690 NZD

Taylor and Hart$57,532 NZD

Retailer 13$91,707 NZD

33 data points across 24 retailers

24 retailers$15,690 NZD to $57,532 NZD

Cheapest Retailer

$15,690 NZD

$8,828 USD

Retailer 2

$16,317 NZD

$9,181 USD

View

Price last confirmed 8 days ago

Retailer 3

$16,365 NZD

$9,208 USD

View

Price last confirmed 7 days ago

Retailer 4

$16,658 NZD

CA$13,017 CAD

View

Retailer 5

$16,794 NZD

$9,449 USD

View

Retailer 6

$18,022 NZD

$10,140 USD

View

Price last confirmed 5 days ago

Retailer 7

$18,054 NZD

$10,158 USD

View

Retailer 8

$18,200 NZD

$10,240 USD

View

Price last confirmed 8 days ago

Retailer 9

$18,200 NZD

$10,240 USD

View

Price last confirmed 17 days ago

Retailer 10

$20,467 NZD

$11,516 USD

View

Price last confirmed 8 days ago

Retailer 11

$20,798 NZD

$11,702 USD

View

Retailer 12

$21,847 NZD

£9,679 GBP

View

Retailer 13

$26,084 NZD

£11,556 GBP

View

Price last confirmed 7 days ago

Retailer 14

$28,648 NZD

$16,119 USD

View

Price last confirmed 12 days ago

B+

Retailer 15

$28,873 NZD

€15,472 EUR

View

B+

Retailer 16

$29,308 NZD

$16,490 USD

View

B+

Retailer 17

$33,180 NZD

£14,700 GBP

View

Retailer 18

$38,586 NZD

ZAR 350,735 ZAR

View

Price last confirmed 8 days ago

Retailer 19

$41,205 NZD

$23,184 USD

View

Retailer 20

$41,374 NZD

$23,279 USD

View

Retailer 21

$47,524 NZD

$26,739 USD

View

Price last confirmed 9 days ago

Retailer 22

$50,690 NZD

$28,521 USD

View

Price last confirmed 7 days ago

Most Expensive

Taylor and Hart

8PB1PC0 · Oct 26

$57,532 NZD

$32,371 USD

View

22 more retailers have this diamond

Prices start from $15,690 NZDSave up to $41,842 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.

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