Radiant|Lab Grown|IGI

3.18ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG732516320

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

Certificate IGI LG732516320

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)

18 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 LG732516320 or 732516320. Listed at 18 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 angle45.1°

Pavilion angle33.6°

OriginLab Grown

Grading LabIGI

CertificateIGI LG732516320

Dimensions10.24 × 7.30 × 4.82 mm

L/W Ratio1.40

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 LG732516320

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: $3,802 USD|-15.5%

Do Amore Diamonds

Retailer 2

Retailer 3

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Retailer 7

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Retailer 11

Retailer 12

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Retailer 17

October 30, 2026

Retailer 13$1,016 USD

Retailer 17$1,106 USD

Retailer 6$1,330 USD

Retailer 15$1,358 USD

Retailer 9$1,398 USD

Retailer 14$1,882 USD

Retailer 3$2,119 USD

Retailer 12$2,390 USD

Retailer 2$2,442 USD

Retailer 16$2,463 USD

Retailer 4$2,997 USD

Retailer 11$3,296 USD

Retailer 10$4,347 USD

Retailer 5$5,510 USD

Retailer 7$7,086 USD

Retailer 8$8,630 USD

Do Amore Diamonds$9,020 USD

33 data points across 17 retailers

18 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

$2,442 USD

View

Retailer 10

$2,463 USD

View

Retailer 11

$2,997 USD

A$4,611 AUD

View

Price last confirmed 8 days ago

Retailer 12

$3,296 USD

View

B+

Retailer 13

$4,347 USD

£3,423 GBP

View

Retailer 14

$5,510 USD

View

Price last confirmed 11 days ago

Retailer 15

$7,086 USD

A$10,901 AUD

View

Price last confirmed 21 days ago

Retailer 16

$7,247 USD

View

Retailer 17

$8,630 USD

View

Most Expensive

Do Amore Diamonds

27-E6BF10FE9 · Oct 28

$9,020 USD

View

17 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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