Radiant|Lab Grown|IGI

3.72ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG835634491

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

Certificate IGI LG835634491

Diamond specifications and retailer prices

From $1,226 NZD

HK$5,400 HKD

As of October 31, 2026

Save $4,904 NZD (80%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: $6,130 NZD at Rare Carat · As of October 28, 2026

View at Rare Carat

About this 3.72ct lab-grown radiant diamond

This 3.72ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG835634491 or 835634491. Listed at 16 retailers as of October 28, 2026, with prices from $1,226 to $6,130, a $4,904 spread on the same certified stone. Rare Carat lists it at $6,130. 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

3.72

Carat

Colour

SI1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle42.7°

Pavilion angle33.7°

OriginLab Grown

Grading LabIGI

CertificateIGI LG835634491

Dimensions10.53 × 7.80 × 5.10 mm

L/W Ratio1.35

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 LG835634491

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 31

Current: $6,130 NZD|Low: $992 NZD|High: $6,219 NZD|Avg: $2,700 NZD|-1.4%

Rare Carat

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

October 31, 2026

Retailer 3$1,004 NZD

Retailer 4$1,226 NZD

Retailer 10$1,286 NZD

Retailer 8$1,523 NZD

Retailer 2$1,621 NZD

Retailer 9$1,726 NZD

Retailer 6$1,840 NZD

Retailer 5$2,583 NZD

Retailer 11$3,462 NZD

Retailer 12$3,519 NZD

Retailer 7$4,646 NZD

Rare Carat$6,130 NZD

37 data points across 12 retailers

16 retailers$1,226 NZD to $6,130 NZD

Retailer 1

$896 NZD

$505 USD

Price last confirmed 15 days ago

Retailer 2

$1,004 NZD

$566 USD

View

Price last confirmed 34 days ago

Retailer 3

$1,097 NZD

$618 USD

View

Price last confirmed 33 days ago

Retailer 4

$1,112 NZD

$627 USD

View

Price last confirmed 21 days ago

Retailer 5

$1,226 NZD

HK$5,400 HKD

View

Retailer 6

$1,286 NZD

$725 USD

View

Retailer 7

$1,523 NZD

£676 GBP

View

Price last confirmed 13 days ago

Retailer 8

$1,621 NZD

€870 EUR

View

B+

Retailer 9

$1,726 NZD

$973 USD

View

Retailer 10

$1,840 NZD

£817 GBP

View

B+

Retailer 11

$2,583 NZD

$1,456 USD

View

Retailer 12

$2,924 NZD

$1,648 USD

View

Price last confirmed 15 days ago

B+

Retailer 13

$3,462 NZD

$1,951 USD

View

B+

Retailer 14

$3,519 NZD

SGD 2,680 SGD

View

Retailer 15

$4,646 NZD

£2,062 GBP

View

Most Expensive

Rare Carat

160228-C · Oct 28

$6,130 NZD

$3,455 USD

View

15 more retailers have this diamond

Prices start from $1,226 NZDSave up to $4,904 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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3.72ct Radiant

$1,226 NZD