Radiant|Lab Grown|IGI

3.17ct E IF Radiant Lab Grown Diamond

EX • E/IF • IGI LG689574932

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

Certificate IGI LG689574932

Diamond specifications and retailer prices

From $1,512 USD

As of October 27, 2026

Save $4,656 USD (75%) vs most expensive(unlock to see where)

17 retailers carry this diamond

Most expensive: $6,168 USD at Taylor and Hart · As of October 27, 2026

View at Taylor and Hart

About this 3.17ct lab-grown radiant diamond

This 3.17ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG689574932 or 689574932. Listed at 17 retailers as of October 27, 2026, with prices from $1,512 to $6,168, a $4,656 spread on the same certified stone. Taylor and Hart lists it at $6,168. 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

3.17

Carat

Color

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle36.5°

Pavilion angle34.6°

OriginLab Grown

Grading LabIGI

CertificateIGI LG689574932

Dimensions10.67 × 7.17 × 4.79 mm

L/W Ratio1.49

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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG689574932

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 27

Current: $1,694 USD|Low: $1,208 USD|High: $5,862 USD|Avg: $3,175 USD|+40.2%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

October 29, 2026

Retailer 12$1,512 USD

Retailer 2$1,645 USD

Retailer 1$1,694 USD

Retailer 13$1,754 USD

Retailer 11$1,925 USD

Retailer 7$1,942 USD

Retailer 6$2,478 USD

Retailer 8$2,664 USD

Retailer 4$4,237 USD

Retailer 10$4,362 USD

Retailer 5$4,786 USD

Retailer 9$5,037 USD

Retailer 3$5,862 USD

43 data points across 13 retailers

17 retailers$1,512 USD to $6,168 USD

Cheapest Retailer

$1,512 USD

Retailer 2

$1,645 USD

View

Retailer 3

$1,694 USD

View

Final sale: no returns

Retailer 4

$1,754 USD

View

Retailer 5

$1,925 USD

View

Retailer 6

$1,942 USD

£1,529 GBP

View

Retailer 7

$2,022 USD

HK$15,800 HKD

View

Retailer 8

$2,478 USD

£1,951 GBP

View

Retailer 9

$2,664 USD

€2,537 EUR

View

B+

Retailer 10

$3,401 USD

View

B+

Retailer 11

$4,237 USD

£3,336 GBP

View

B+

Retailer 12

$4,362 USD

View

B+

Retailer 13

$4,786 USD

View

B+

Retailer 14

$5,037 USD

£3,966 GBP

View

B+

Retailer 15

$5,381 USD

View

Retailer 16

$5,862 USD

SGD 7,922 SGD

View

Most Expensive

Taylor and Hart

FYNEG0S · Oct 27

$6,168 USD

View

16 more retailers have this diamond

Prices start from $1,512 USDSave up to $4,656 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.

Similar diamonds

3.17ct Radiant

$1,512 USD