Marquise|Lab Grown|IGI

3.51ct E FL Marquise Lab Grown Diamond

ID • E/FL • IGI LG717586084

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG717586084

Diamond specifications and retailer prices

From $8,954 SGD

$7,004 USD

As of October 30, 2026

Save $26,476 SGD (75%) vs most expensive(unlock to see where)

24 retailers carry this diamond

Most expensive: $35,430 SGD at Taylor and Hart · As of October 31, 2026

View at Taylor and Hart

About this 3.51ct lab-grown marquise diamond

This 3.51ct 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 LG717586084 or 717586084. Listed at 24 retailers as of October 30, 2026, with prices from $8,954 to $35,430, a $26,476 spread on the same certified stone. Taylor and Hart lists it at $35,430. 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

3.51

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle36.4°

Pavilion angle40.8°

OriginLab Grown

Grading LabIGI

CertificateIGI LG717586084

Dimensions15.17 × 7.77 × 5.08 mm

L/W Ratio1.95

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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG717586084

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 30

Current: $20,394 SGD|Low: $8,954 SGD|High: $37,591 SGD|Avg: $14,643 SGD|-9.2%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

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Retailer 20

Taylor and Hart

November 1, 2026

Retailer 7$8,954 SGD

Retailer 5$9,299 SGD

Retailer 2$9,312 SGD

Retailer 11$9,587 SGD

Retailer 19$9,761 SGD

Retailer 4$10,336 SGD

Retailer 6$10,387 SGD

Retailer 9$10,387 SGD

Retailer 20$11,233 SGD

Retailer 8$12,330 SGD

Retailer 18$12,587 SGD

Retailer 13$12,646 SGD

Retailer 15$13,031 SGD

Retailer 10$14,865 SGD

Retailer 17$15,377 SGD

Retailer 12$15,916 SGD

Retailer 16$16,780 SGD

Retailer 3$18,961 SGD

Retailer 1$20,394 SGD

Retailer 14$24,118 SGD

Taylor and Hart$35,430 SGD

34 data points across 21 retailers

24 retailers$8,954 SGD to $35,430 SGD

Cheapest Retailer

$8,954 SGD

$7,004 USD

B+

Retailer 2

$9,299 SGD

$7,274 USD

View

Retailer 3

$9,312 SGD

$7,284 USD

View

Retailer 4

$9,587 SGD

$7,499 USD

View

Retailer 5

$9,761 SGD

$7,635 USD

View

B+

Retailer 6

$10,336 SGD

$8,085 USD

View

B+

Retailer 7

$10,387 SGD

$8,125 USD

View

Retailer 8

$10,387 SGD

$8,125 USD

View

Price last confirmed 16 days ago

B+

Retailer 9

$11,233 SGD

$8,787 USD

View

B+

Retailer 10

$12,330 SGD

$9,645 USD

View

B+

Retailer 11

$12,587 SGD

$9,846 USD

View

Final sale: no returns

Retailer 12

$12,646 SGD

£7,789 GBP

View

Price last confirmed 31 days ago

B+

Retailer 13

$13,031 SGD

£8,026 GBP

View

Retailer 14

$14,209 SGD

$11,115 USD

View

Price last confirmed 33 days ago

B+

Retailer 15

$14,865 SGD

£9,156 GBP

View

Retailer 16

$15,239 SGD

$11,920 USD

View

Price last confirmed 10 days ago

Retailer 17

$15,377 SGD

$12,028 USD

View

B+

Retailer 18

$15,916 SGD

$12,450 USD

View

B+

Retailer 19

$16,780 SGD

€12,501 EUR

View

B+

Retailer 20

$17,593 SGD

$13,762 USD

View

B+

Retailer 21

$18,961 SGD

$14,832 USD

View

Retailer 22

$20,394 SGD

£12,561 GBP

View

Retailer 23

$24,118 SGD

ZAR 304,774 ZAR

View

Most Expensive

Taylor and Hart

HWQ20GM · Oct 31

$35,430 SGD

$27,714 USD

View

23 more retailers have this diamond

Prices start from $8,954 SGDSave up to $26,476 SGD

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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