Radiant|Lab Grown|IGI

4.05ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG626422994

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

Certificate IGI LG626422994

Diamond specifications and retailer prices

From $6,233 AUD

$4,379 USD

As of October 24, 2026

Save $5,453 AUD (47%) vs most expensive(unlock to see where)

28 retailers carry this diamond

Most expensive: $28,383 AUD at Do Amore Diamonds · As of October 23, 2026

View at Do Amore Diamonds

About this 4.05ct lab-grown radiant diamond

This 4.05ct 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 LG626422994 or 626422994. Listed at 28 retailers as of October 24, 2026, with a 87% 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

4.05

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle31.7°

Pavilion angle34.2°

OriginLab Grown

Grading LabIGI

CertificateIGI LG626422994

Dimensions11.27 × 8.11 × 5.31 mm

L/W Ratio1.39

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 LG626422994

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 24

Current: $28,383 AUD|Low: $4,125 AUD|High: $28,383 AUD|Avg: $10,885 AUD

Do Amore Diamonds

Retailer 2

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Retailer 22

October 29, 2026

Retailer 5$4,125 AUD

Retailer 10$4,825 AUD

Retailer 22$5,010 AUD

Retailer 7$5,390 AUD

Retailer 19$6,233 AUD

Retailer 11$6,595 AUD

Retailer 21$6,875 AUD

Retailer 13$7,105 AUD

Retailer 6$8,000 AUD

Retailer 18$8,459 AUD

Retailer 17$8,868 AUD

Retailer 14$9,133 AUD

Retailer 16$11,115 AUD

Retailer 2$11,686 AUD

Retailer 9$12,055 AUD

Retailer 8$13,173 AUD

Retailer 20$13,458 AUD

Retailer 12$13,951 AUD

Retailer 4$14,839 AUD

Retailer 15$18,461 AUD

Retailer 3$19,100 AUD

Do Amore Diamonds$28,383 AUD

37 data points across 22 retailers

28 retailers$6,233 AUD to $11,686 AUD

Retailer 1

$4,125 AUD

$2,898 USD

Price last confirmed 8 days ago

Retailer 2

$4,125 AUD

$2,898 USD

View

Price last confirmed 21 days ago

Retailer 3

$4,784 AUD

$3,361 USD

View

Price last confirmed 27 days ago

Retailer 4

$4,825 AUD

$3,390 USD

View

Price last confirmed 8 days ago

Retailer 5

$4,837 AUD

$3,398 USD

View

Price last confirmed 30 days ago

Retailer 6

$5,010 AUD

$3,520 USD

View

Price last confirmed 7 days ago

Retailer 7

$5,262 AUD

$3,697 USD

View

Price last confirmed 32 days ago

Retailer 8

$5,533 AUD

$3,887 USD

View

Price last confirmed 32 days ago

Retailer 9

$6,233 AUD

$4,379 USD

View

Retailer 10

$6,595 AUD

HK$36,200 HKD

View

Retailer 11

$6,599 AUD

$4,636 USD

View

Price last confirmed 19 days ago

Retailer 12

$6,599 AUD

$4,636 USD

View

Price last confirmed 8 days ago

Retailer 13

$6,875 AUD

$4,830 USD

View

Price last confirmed 8 days ago

Retailer 14

$7,105 AUD

£3,930 GBP

View

Price last confirmed 7 days ago

Retailer 15

$7,738 AUD

$5,436 USD

View

Price last confirmed 29 days ago

Retailer 16

$8,000 AUD

$5,620 USD

View

Price last confirmed 9 days ago

Retailer 17

$8,868 AUD

$6,230 USD

View

Price last confirmed 8 days ago

Retailer 18

$9,133 AUD

£5,052 GBP

View

Price last confirmed 8 days ago

Retailer 19

$11,115 AUD

ZAR 126,156 ZAR

View

Price last confirmed 10 days ago

B+

Retailer 20

$11,686 AUD

$8,210 USD

View

Retailer 21

$12,055 AUD

$8,469 USD

View

Price last confirmed 7 days ago

Retailer 22

$13,173 AUD

$9,255 USD

View

Price last confirmed 9 days ago

Retailer 23

$13,458 AUD

£7,445 GBP

View

Price last confirmed 8 days ago

Retailer 24

$13,951 AUD

$9,801 USD

View

Price last confirmed 8 days ago

Retailer 25

$14,839 AUD

View

Price last confirmed 21 days ago

Retailer 26

$18,461 AUD

$12,970 USD

View

Price last confirmed 7 days ago

Retailer 27

$19,100 AUD

SGD 18,133 SGD

View

Price last confirmed 9 days ago

Most Expensive

Do Amore Diamonds

27-8603DF48A · Oct 23

$28,383 AUD

$19,940 USD

View

Price last confirmed 7 days ago

27 more retailers have this diamond

Prices start from $6,233 AUDSave up to $5,453 AUD

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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