Radiant|Lab Grown|IGI

3.15ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG628447916

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

Certificate IGI LG628447916

Diamond specifications and retailer prices

From $1,147 USD

As of October 27, 2026

Save $9,033 USD (89%) vs most expensive(unlock to see where)

17 retailers carry this diamond

Most expensive: $10,180 USD at Do Amore Diamonds · As of October 29, 2026

View at Do Amore Diamonds

About this 3.15ct lab-grown radiant diamond

This 3.15ct 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 LG628447916 or 628447916. Listed at 17 retailers as of October 27, 2026, with prices from $1,147 to $10,180, a $9,033 spread on the same certified stone. Do Amore Diamonds lists it at $10,180. 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

3.15

Carat

Color

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle46.9°

Pavilion angle32.6°

OriginLab Grown

Grading LabIGI

CertificateIGI LG628447916

Dimensions10.40 × 10.40 × 7.13 mm

L/W Ratio1.00

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 LG628447916

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 27

Current: $10,180 USD|Low: $1,120 USD|High: $10,580 USD|Avg: $3,710 USD|-3.8%

Do Amore Diamonds

Retailer 2

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Retailer 17

October 29, 2026

Retailer 13$1,147 USD

Retailer 17$1,248 USD

Retailer 9$1,386 USD

Retailer 2$1,460 USD

Retailer 15$1,498 USD

Retailer 14$2,115 USD

Retailer 5$2,385 USD

Retailer 8$2,436 USD

Retailer 16$2,622 USD

Retailer 12$2,666 USD

Retailer 3$3,380 USD

Retailer 11$3,637 USD

Retailer 10$4,594 USD

Retailer 4$5,385 USD

Retailer 6$7,021 USD

Retailer 7$8,190 USD

Do Amore Diamonds$10,180 USD

32 data points across 17 retailers

17 retailers$1,147 USD to $10,180 USD

Cheapest Retailer

$1,147 USD

Retailer 2

$1,248 USD

View

Retailer 3

$1,386 USD

View

Final sale: no returns

Retailer 4

$1,460 USD

View

Retailer 5

$1,498 USD

View

Retailer 6

$2,115 USD

View

Retailer 7

$2,385 USD

€2,271 EUR

View

Retailer 8

$2,436 USD

View

Retailer 9

$2,622 USD

View

Retailer 10

$2,666 USD

View

B+

Retailer 11

$3,380 USD

A$5,200 AUD

View

Price last confirmed 7 days ago

B+

Retailer 12

$3,637 USD

View

B+

Retailer 13

$4,594 USD

£3,617 GBP

View

B+

Retailer 14

$5,385 USD

View

Price last confirmed 10 days ago

Retailer 15

$7,021 USD

A$10,802 AUD

View

Price last confirmed 20 days ago

Retailer 16

$8,190 USD

View

Most Expensive

Do Amore Diamonds

27-B5D3A5C08 · Oct 29

$10,180 USD

View

16 more retailers have this diamond

Prices start from $1,147 USDSave up to $9,033 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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