Marquise|Lab Grown|IGI

1.67ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG744515112

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG744515112

Diamond specifications and retailer prices

From $663 USD

As of October 30, 2026

Save $5,227 USD (89%) vs most expensive(unlock to see where)

18 retailers carry this diamond

Most expensive: $5,890 USD at Do Amore Diamonds · As of October 30, 2026

View at Do Amore Diamonds

About this 1.67ct lab-grown marquise diamond

This 1.67ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG744515112 or 744515112. Listed at 18 retailers as of October 30, 2026, with prices from $663 to $5,890, a $5,227 spread on the same certified stone. Do Amore Diamonds lists it at $5,890. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.67

Carat

Color

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.1°

Pavilion angle39.4°

OriginLab Grown

Grading LabIGI

CertificateIGI LG744515112

Dimensions12.09 × 6.38 × 3.84 mm

L/W Ratio1.89

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 LG744515112

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30

Current: $5,890 USD|Low: $566 USD|High: $6,200 USD|Avg: $2,146 USD|-5.0%

Do Amore Diamonds

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October 31, 2026

Retailer 16$663 USD

Retailer 6$721 USD

Retailer 10$792 USD

Retailer 18$928 USD

Retailer 7$950 USD

Retailer 9$1,051 USD

Retailer 17$1,253 USD

Retailer 13$1,383 USD

Retailer 8$1,403 USD

Retailer 3$1,964 USD

Retailer 11$2,113 USD

Retailer 5$2,272 USD

Retailer 4$2,386 USD

Retailer 15$2,735 USD

Retailer 12$3,220 USD

Retailer 14$3,352 USD

Retailer 2$3,797 USD

Do Amore Diamonds$5,890 USD

35 data points across 18 retailers

18 retailers$663 USD to $5,890 USD

Cheapest Retailer

$663 USD

Retailer 2

$721 USD

View

Retailer 3

$792 USD

View

Final sale: no returns

Retailer 4

$928 USD

View

Retailer 5

$950 USD

View

Retailer 6

$1,051 USD

View

Retailer 7

$1,253 USD

View

Retailer 8

$1,383 USD

€1,317 EUR

View

Retailer 9

$1,403 USD

A$2,158 AUD

View

B+

Retailer 10

$1,964 USD

View

B+

Retailer 11

$2,113 USD

A$3,251 AUD

View

B+

Retailer 12

$2,272 USD

View

B+

Retailer 13

$2,386 USD

View

B+

Retailer 14

$2,735 USD

View

B+

Retailer 15

$3,220 USD

View

B+

Retailer 16

$3,352 USD

£2,639 GBP

View

Retailer 17

$3,797 USD

A$5,841 AUD

View

Most Expensive

Do Amore Diamonds

27-9FBFEA9C8 · Oct 30

$5,890 USD

View

17 more retailers have this diamond

Prices start from $663 USDSave up to $5,227 USD

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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1.67ct Marquise

$663 USD