Radiant|Lab Grown|IGI

2.78ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG717586153

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

Certificate IGI LG717586153

Diamond specifications and retailer prices

From HK$10,756 HKD

$1,371 USD

As of October 30, 2026

Save HK$68,564 HKD (86%) vs most expensive(unlock to see where)

27 retailers carry this diamond

Most expensive: HK$81,831 HKD at Brilliant Earth · As of September 28, 2026

View at Brilliant Earth

About this 2.78ct lab-grown radiant diamond

This 2.78ct lab-grown radiant sits in the two to three carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG717586153 or 717586153. Listed at 27 retailers as of October 29, 2026, with a 637% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

2.78

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle39.7°

Pavilion angle34.6°

OriginLab Grown

Grading LabIGI

CertificateIGI LG717586153

Dimensions9.77 × 6.99 × 4.71 mm

L/W Ratio1.40

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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG717586153

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 30

Current: HK$79,320 HKD|Low: HK$10,756 HKD|High: HK$79,320 HKD|Avg: HK$27,220 HKD|+0.1%

Brilliant Earth

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

October 31, 2026

Retailer 3HK$10,756 HKD

Retailer 9HK$12,475 HKD

Retailer 20HK$12,475 HKD

Retailer 4HK$13,055 HKD

Retailer 18HK$13,808 HKD

Retailer 13HK$17,450 HKD

Retailer 15HK$17,849 HKD

Retailer 2HK$19,499 HKD

Retailer 6HK$20,815 HKD

Retailer 5HK$23,380 HKD

Retailer 11HK$24,706 HKD

Retailer 16HK$29,665 HKD

Retailer 10HK$30,131 HKD

Retailer 14HK$32,185 HKD

Retailer 7HK$33,619 HKD

Retailer 19HK$35,958 HKD

Retailer 8HK$38,674 HKD

Retailer 17HK$40,295 HKD

Retailer 12HK$43,854 HKD

Brilliant EarthHK$79,320 HKD

33 data points across 20 retailers

27 retailersHK$10,756 HKD to HK$79,320 HKD

Cheapest Retailer

HK$10,756 HKD

$1,371 USD

Retailer 2

HK$12,475 HKD

$1,590 USD

View

Retailer 3

HK$12,475 HKD

$1,590 USD

View

Price last confirmed 19 days ago

Retailer 4

HK$13,055 HKD

$1,664 USD

View

Final sale: no returns

Retailer 5

HK$13,173 HKD

$1,679 USD

View

Price last confirmed 34 days ago

Retailer 6

HK$13,808 HKD

$1,760 USD

View

Retailer 7

HK$13,856 HKD

$1,766 USD

View

Price last confirmed 33 days ago

Retailer 8

HK$17,450 HKD

£1,751 GBP

View

Retailer 9

HK$17,849 HKD

$2,275 USD

View

Retailer 10

HK$19,499 HKD

€2,367 EUR

View

Retailer 11

HK$20,815 HKD

$2,653 USD

View

Retailer 12

HK$23,380 HKD

$2,980 USD

View

Retailer 13

HK$24,706 HKD

$3,149 USD

View

Retailer 14

HK$25,499 HKD

$3,250 USD

View

Price last confirmed 32 days ago

Retailer 15

HK$29,665 HKD

A$5,817 AUD

View

Price last confirmed 9 days ago

B+

Retailer 16

HK$30,131 HKD

£3,024 GBP

View

B+

Retailer 17

HK$32,185 HKD

ZAR 66,272 ZAR

View

B+

Retailer 18

HK$33,619 HKD

$4,285 USD

View

B+

Retailer 19

HK$33,642 HKD

$4,288 USD

View

Retailer 20

HK$35,958 HKD

A$7,051 AUD

View

Price last confirmed 23 days ago

B+

Retailer 21

HK$38,674 HKD

$4,929 USD

View

B+

Retailer 22

HK$40,295 HKD

£4,044 GBP

View

B+

Retailer 23

HK$43,854 HKD

$5,590 USD

View

Retailer 24

HK$45,780 HKD

$5,835 USD

View

Price last confirmed 33 days ago

Retailer 25

HK$47,141 HKD

$6,009 USD

View

Price last confirmed 52 days ago

Retailer 26

HK$79,320 HKD

$10,110 USD

View

Most Expensive

Brilliant Earth

21576897A · Sep 28

HK$81,831 HKD

$10,430 USD

View

Price last confirmed 33 days ago

26 more retailers have this diamond

Prices start from HK$10,756 HKDSave up to HK$68,564 HKD

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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