Radiant|Lab Grown|IGI

0.66ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG668447661

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

Certificate IGI LG668447661

Diamond specifications and retailer prices

From £127 GBP

$171 USD

As of November 2, 2026

Save £1,095 GBP (90%) vs most expensive(unlock to see where)

25 retailers carry this diamond

Most expensive: £1,222 GBP at Do Amore Diamonds · As of November 2, 2026

View at Do Amore Diamonds

About this 0.66ct lab-grown radiant diamond

This 0.66ct lab-grown radiant sits in the half to three-quarter carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG668447661 or 668447661. Listed at 25 retailers as of November 2, 2026, with prices from £127 to £1,222, a £1,095 spread on the same certified stone. Do Amore Diamonds lists it at £1,222. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.66

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle37.5°

Pavilion angle34.9°

OriginLab Grown

Grading LabIGI

CertificateIGI LG668447661

Dimensions6.30 × 4.34 × 2.94 mm

L/W Ratio1.45

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 LG668447661

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: Nov 2

Current: £1,222 GBP|Low: £127 GBP|High: £1,222 GBP|Avg: £380 GBP

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

Retailer 17

Retailer 18

Retailer 19

Retailer 20

Retailer 21

Retailer 22

November 2, 2026

Retailer 22£127 GBP

Retailer 9£142 GBP

Retailer 21£148 GBP

Retailer 6£157 GBP

Retailer 12£174 GBP

Retailer 20£216 GBP

Retailer 7£248 GBP

Retailer 5£250 GBP

Retailer 16£279 GBP

Retailer 13£313 GBP

Retailer 17£316 GBP

Retailer 19£324 GBP

Retailer 3£326 GBP

Retailer 2£443 GBP

Retailer 4£535 GBP

Retailer 8£559 GBP

Retailer 14£581 GBP

Retailer 15£599 GBP

Retailer 11£599 GBP

Retailer 18£813 GBP

Retailer 10£821 GBP

Do Amore Diamonds£1,222 GBP

38 data points across 22 retailers

25 retailers£127 GBP to £1,222 GBP

A+

Cheapest Retailer

£127 GBP

$171 USD

Retailer 2

£142 GBP

$190 USD

View

Final sale: no returns

Retailer 3

£148 GBP

$198 USD

View

Retailer 4

£157 GBP

$211 USD

View

Retailer 5

£174 GBP

$233 USD

View

Price last confirmed 17 days ago

Retailer 6

£216 GBP

$290 USD

View

Retailer 7

£248 GBP

HK$2,600 HKD

View

Retailer 8

£250 GBP

$335 USD

View

Retailer 9

£279 GBP

$375 USD

View

Retailer 10

£313 GBP

View

Retailer 11

£316 GBP

ZAR 6,853 ZAR

View

B+

Retailer 12

£324 GBP

€414 EUR

View

Retailer 13

£326 GBP

$438 USD

View

B+

Retailer 14

£443 GBP

A$915 AUD

View

B+

Retailer 15

£535 GBP

$718 USD

View

B+

Retailer 16

£559 GBP

$750 USD

View

Retailer 17

£581 GBP

$780 USD

View

Price last confirmed 8 days ago

Retailer 18

£581 GBP

$780 USD

View

Price last confirmed 16 days ago

Retailer 19

£599 GBP

$804 USD

View

Retailer 20

£599 GBP

SGD 1,087 SGD

View

Retailer 21

£813 GBP

View

Retailer 22

£821 GBP

$1,101 USD

View

Retailer 23

£871 GBP

View

Retailer 24

£909 GBP

View

Price last confirmed 11 days ago

Most Expensive

Do Amore Diamonds

27-55A654480 · Nov 2

£1,222 GBP

$1,640 USD

View

24 more retailers have this diamond

Prices start from £127 GBPSave up to £1,095 GBP

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

A+

0.66ct Radiant

£127 GBP