Radiant|Lab Grown|IGI

3.18ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG731569276

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG731569276

Diamond specifications and retailer prices

From $1,016 USD

As of October 27, 2026

Save $8,004 USD (89%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: $9,020 USD at Do Amore Diamonds · As of October 28, 2026

View at Do Amore Diamonds

About this 3.18ct lab-grown radiant diamond

This 3.18ct lab-grown radiant 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 LG731569276 or 731569276. Listed at 16 retailers as of October 27, 2026, with prices from $1,016 to $9,020, a $8,004 spread on the same certified stone. Do Amore Diamonds lists it at $9,020. 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

3.18

Carat

Color

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle44.4°

Pavilion angle35.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG731569276

Dimensions10.24 × 7.26 × 4.98 mm

L/W Ratio1.41

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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG731569276

Side View

Caratlytics Score

How it works →

A+

Exceptional

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: $9,020 USD|Low: $999 USD|High: $10,680 USD|Avg: $3,805 USD|-15.5%

Do Amore Diamonds

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

October 29, 2026

Retailer 11$1,016 USD

Retailer 15$1,106 USD

Retailer 4$1,330 USD

Retailer 13$1,358 USD

Retailer 8$1,398 USD

Retailer 12$1,882 USD

Retailer 16$2,119 USD

Retailer 10$2,390 USD

Retailer 6$2,447 USD

Retailer 14$2,463 USD

Retailer 9$3,296 USD

Retailer 2$4,347 USD

Retailer 3$5,510 USD

Retailer 5$7,086 USD

Retailer 7$8,630 USD

Do Amore Diamonds$9,020 USD

32 data points across 16 retailers

16 retailers$1,016 USD to $9,020 USD

A+

Cheapest Retailer

$1,016 USD

Retailer 2

$1,106 USD

View

Retailer 3

$1,330 USD

View

Retailer 4

$1,358 USD

View

Retailer 5

$1,398 USD

View

Final sale: no returns

Retailer 6

$1,882 USD

View

Retailer 7

$2,119 USD

€2,018 EUR

View

Retailer 8

$2,390 USD

View

Retailer 9

$2,447 USD

View

Retailer 10

$2,463 USD

View

Retailer 11

$3,296 USD

View

B+

Retailer 12

$4,347 USD

£3,423 GBP

View

B+

Retailer 13

$5,510 USD

View

Price last confirmed 10 days ago

Retailer 14

$7,086 USD

A$10,901 AUD

View

Price last confirmed 20 days ago

Retailer 15

$8,630 USD

View

Most Expensive

Do Amore Diamonds

27-41DED3EF0 · Oct 28

$9,020 USD

View

15 more retailers have this diamond

Prices start from $1,016 USDSave up to $8,004 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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A+

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