Radiant|Lab Grown|IGI

4.88ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG812621042

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

Certificate IGI LG812621042

Diamond specifications and retailer prices

From $10,422 NZD

$5,874 USD

As of November 1, 2026

Save $28,103 NZD (73%) vs most expensive(unlock to see where)

22 retailers carry this diamond

Most expensive: $38,525 NZD at Taylor and Hart · As of October 31, 2026

View at Taylor and Hart

About this 4.88ct lab-grown radiant diamond

This 4.88ct 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 LG812621042 or 812621042. Listed at 22 retailers as of October 31, 2026, with prices from $10,422 to $38,525, a $28,103 spread on the same certified stone. Taylor and Hart lists it at $38,525. 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

4.88

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle43.4°

Pavilion angle35.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG812621042

Dimensions12.04 × 8.44 × 5.61 mm

L/W Ratio1.43

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 LG812621042

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: Nov 1

Current: $13,717 NZD|Low: $10,422 NZD|High: $39,197 NZD|Avg: $20,697 NZD|-4.4%

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

Retailer 14

Retailer 15

Retailer 16

Taylor and Hart

November 2, 2026

Retailer 4$10,422 NZD

Retailer 2$10,823 NZD

Retailer 12$12,280 NZD

Retailer 1$13,717 NZD

Retailer 16$15,305 NZD

Retailer 8$15,463 NZD

Retailer 15$15,850 NZD

Retailer 6$16,670 NZD

Retailer 11$17,680 NZD

Retailer 3$19,285 NZD

Retailer 9$21,968 NZD

Retailer 13$22,977 NZD

Retailer 10$23,751 NZD

Retailer 5$29,179 NZD

Retailer 14$30,021 NZD

Retailer 7$30,057 NZD

Taylor and Hart$38,525 NZD

36 data points across 17 retailers

22 retailers$10,422 NZD to $38,525 NZD

Retailer 1

$9,503 NZD

$5,356 USD

Price last confirmed 24 days ago

Retailer 2

$10,422 NZD

$5,874 USD

View

Final sale: no returns

Retailer 3

$10,823 NZD

$6,100 USD

View

Retailer 4

$10,947 NZD

$6,170 USD

View

Price last confirmed 38 days ago

Retailer 5

$11,024 NZD

$6,213 USD

View

Price last confirmed 29 days ago

Retailer 6

$11,024 NZD

$6,213 USD

View

Price last confirmed 22 days ago

Retailer 7

$12,280 NZD

$6,921 USD

View

Retailer 8

$13,087 NZD

$7,376 USD

View

Price last confirmed 32 days ago

Retailer 9

$13,717 NZD

£6,087 GBP

View

B+

Retailer 10

$15,305 NZD

£6,792 GBP

View

B+

Retailer 11

$15,463 NZD

$8,715 USD

View

B+

Retailer 12

$15,850 NZD

$8,933 USD

View

B+

Retailer 13

$16,670 NZD

$9,395 USD

View

B+

Retailer 14

$17,680 NZD

€9,490 EUR

View

B+

Retailer 15

$19,285 NZD

$10,869 USD

View

B+

Retailer 16

$21,968 NZD

£9,749 GBP

View

B+

Retailer 17

$22,977 NZD

ZAR 209,207 ZAR

View

B+

Retailer 18

$23,751 NZD

A$20,594 AUD

View

Retailer 19

$29,179 NZD

$16,445 USD

View

Retailer 20

$30,021 NZD

$16,920 USD

View

Retailer 21

$30,057 NZD

$16,940 USD

View

Most Expensive

Taylor and Hart

3PMCSWU · Oct 31

$38,525 NZD

$21,713 USD

View

21 more retailers have this diamond

Prices start from $10,422 NZDSave up to $28,103 NZD

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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