Radiant|Lab Grown|IGI

1.56ct G SI1 Radiant Lab Grown Diamond

EX • G/SI1 • IGI LG605366722

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

Certificate IGI LG605366722

Diamond specifications and retailer prices

From $453 NZD

$255 USD

As of November 1, 2026

Save $1,828 NZD (80%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: $2,282 NZD at Reve Diamonds · As of November 1, 2026

View at Reve Diamonds

About this 1.56ct lab-grown radiant diamond

This 1.56ct lab-grown radiant sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG605366722 or 605366722. Listed at 16 retailers as of November 1, 2026, with prices from $453 to $2,282, a $1,828 spread on the same certified stone. Reve Diamonds lists it at $2,282. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.56

Carat

Colour

SI1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle43.3°

Pavilion angle30.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG605366722

Dimensions8.50 × 5.49 × 3.67 mm

L/W Ratio1.55

Culet sizePointed

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG605366722

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: $1,328 NZD|Low: $389 NZD|High: $2,040 NZD|Avg: $964 NZD|+11.7%

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

November 2, 2026

Retailer 12$405 NZD

Retailer 6$453 NZD

Retailer 3$471 NZD

Retailer 4$503 NZD

Retailer 13$503 NZD

Retailer 9$840 NZD

Retailer 2$857 NZD

Retailer 10$914 NZD

Retailer 7$940 NZD

Retailer 5$1,089 NZD

Retailer 1$1,328 NZD

Retailer 11$1,573 NZD

Retailer 14$1,617 NZD

Retailer 8$2,016 NZD

40 data points across 14 retailers

16 retailers$453 NZD to $2,282 NZD

Retailer 1

$405 NZD

$228 USD

Price last confirmed 11 days ago

Retailer 2

$453 NZD

$255 USD

View

Final sale: no returns

Retailer 3

$471 NZD

$265 USD

View

Price last confirmed 12 days ago

Retailer 4

$503 NZD

$283 USD

View

Price last confirmed 17 days ago

Retailer 5

$503 NZD

$283 USD

View

Price last confirmed 11 days ago

Retailer 6

$840 NZD

€450 EUR

View

Retailer 7

$857 NZD

$482 USD

View

Retailer 8

$914 NZD

$514 USD

View

Retailer 9

$940 NZD

£416 GBP

View

B+

Retailer 10

$1,089 NZD

$613 USD

View

B+

Retailer 11

$1,328 NZD

$747 USD

View

Retailer 12

$1,573 NZD

$885 USD

View

Price last confirmed 14 days ago

Retailer 13

$1,617 NZD

$910 USD

View

Price last confirmed 11 days ago

Retailer 14

$1,710 NZD

$962 USD

View

Retailer 15

$2,016 NZD

£893 GBP

View

Most Expensive

Reve Diamonds

D19BAF116 · Nov 1

$2,282 NZD

$1,284 USD

View

15 more retailers have this diamond

Prices start from $453 NZDSave up to $1,828 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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1.56ct Radiant

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