Marquise|Lab Grown|IGI

3.17ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG766601599

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG766601599

Diamond specifications and retailer prices

From $5,706 AUD

$4,008 USD

As of October 31, 2026

Save $7,050 AUD (55%) vs most expensive(unlock to see where)

19 retailers carry this diamond

Most expensive: $19,029 AUD at Taylor and Hart · As of October 14, 2026

View at Taylor and Hart

About this 3.17ct lab-grown marquise diamond

This 3.17ct 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 LG766601599 or 766601599. Listed at 19 retailers as of October 31, 2026, with a 124% 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

3.17

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle33.3°

Pavilion angle41.3°

OriginLab Grown

Grading LabIGI

CertificateIGI LG766601599

Dimensions15.11 × 7.64 × 4.89 mm

L/W Ratio1.98

Girdle conditionFaceted

Culet sizePointed

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 LG766601599

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: $12,755 AUD|Low: $3,889 AUD|High: $19,029 AUD|Avg: $10,058 AUD|-28.8%

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

Taylor and Hart

October 30, 2026

Retailer 9$3,889 AUD

Retailer 6$5,243 AUD

Retailer 17$5,280 AUD

Retailer 5$5,467 AUD

Retailer 15$5,652 AUD

Retailer 11$5,706 AUD

Retailer 10$7,096 AUD

Retailer 12$7,396 AUD

Retailer 4$8,288 AUD

Retailer 2$8,433 AUD

Retailer 7$10,834 AUD

Retailer 13$12,494 AUD

Retailer 1$12,755 AUD

Retailer 8$13,469 AUD

Retailer 16$13,587 AUD

Retailer 14$13,916 AUD

Retailer 3$15,806 AUD

Taylor and Hart$19,029 AUD

32 data points across 18 retailers

19 retailers$5,706 AUD to $12,755 AUD

Retailer 1

$4,684 AUD

$3,290 USD

Price last confirmed 25 days ago

Retailer 2

$5,095 AUD

$3,579 USD

View

Price last confirmed 18 days ago

Retailer 3

$5,432 AUD

$3,816 USD

View

Price last confirmed 20 days ago

Retailer 4

$5,432 AUD

$3,816 USD

View

Price last confirmed 24 days ago

Retailer 5

$5,706 AUD

$4,008 USD

View

Retailer 6

$5,818 AUD

$4,087 USD

View

Price last confirmed 38 days ago

Retailer 7

$6,788 AUD

$4,768 USD

View

Price last confirmed 25 days ago

Retailer 8

$7,096 AUD

€4,747 EUR

View

Retailer 9

$7,396 AUD

£4,091 GBP

View

Price last confirmed 17 days ago

Retailer 10

$8,288 AUD

£4,584 GBP

View

Price last confirmed 18 days ago

Retailer 11

$8,433 AUD

$5,924 USD

View

Price last confirmed 18 days ago

Retailer 12

$10,834 AUD

$7,610 USD

View

Price last confirmed 26 days ago

Retailer 13

$12,494 AUD

ZAR 141,778 ZAR

View

Price last confirmed 18 days ago

B+

Retailer 14

$12,755 AUD

$8,960 USD

View

Retailer 15

$13,469 AUD

View

Price last confirmed 34 days ago

Retailer 16

$13,587 AUD

$9,544 USD

View

Price last confirmed 18 days ago

Retailer 17

$13,916 AUD

£7,697 GBP

View

Price last confirmed 18 days ago

Retailer 18

$15,806 AUD

$11,103 USD

View

Price last confirmed 19 days ago

Most Expensive

Taylor and Hart

I4A2MOO · Oct 14

$19,029 AUD

$13,367 USD

View

Price last confirmed 19 days ago

18 more retailers have this diamond

Prices start from $5,706 AUDSave up to $7,050 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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