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Radiant|Lab Grown|IGI

1.67ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG732520458

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

Certificate IGI LG732520458

Diamond specifications and retailer prices

From $479 NZD
$270 USD
As of October 30, 2026
Save $5,589 NZD (92%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $6,068 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.67ct lab-grown radiant diamond

This 1.67ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG732520458 or 732520458. Listed at 17 retailers as of October 30, 2026, with prices from $479 to $6,068, a $5,589 spread on the same certified stone. Brilliant Earth lists it at $6,068. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.67
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG732520458
Dimensions8.70 × 5.84 × 3.86 mm
L/W Ratio1.49
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
Top View
8.70 mm5.84 mm1.67 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG732520458
Side View
Table 65.0%Crown 36.7°Girdle: MediumPavilion 34.5°Culet: NoneDepth 66.1%

Caratlytics Score

How it works →
A+
Exceptional
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: $6,068 NZD|Low: $479 NZD|High: $7,044 NZD|Avg: $2,270 NZD|-13.9%
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
November 1, 2026
Retailer 13$479 NZD
Retailer 5$555 NZD
Retailer 9$614 NZD
Retailer 14$910 NZD
Retailer 7$985 NZD
Retailer 17$985 NZD
Retailer 10$1,090 NZD
Retailer 12$1,526 NZD
Retailer 8$1,693 NZD
Retailer 16$1,826 NZD
Retailer 4$1,890 NZD
Retailer 3$2,110 NZD
Retailer 2$2,630 NZD
Retailer 11$3,172 NZD
Retailer 15$4,258 NZD
Retailer 6$5,128 NZD
Brilliant Earth$6,068 NZD

37 data points across 17 retailers

17 retailers$479 NZD to $6,068 NZD

A+
Cheapest Retailer
-
$479 NZD
$270 USD
A
Retailer 2
-
$555 NZD
$313 USD
View
A
Retailer 3
-
$614 NZD
$346 USD
View
Final sale: no returns
A
Retailer 4
-
$910 NZD
$513 USD
View
A
Retailer 5
-
$985 NZD
$555 USD
View
A
Retailer 6
-
$985 NZD
$555 USD
View
A
Retailer 7
-
$1,090 NZD
€585 EUR
View
A
Retailer 8
-
$1,526 NZD
A$1,323 AUD
View
A
Retailer 9
-
$1,693 NZD
$954 USD
View
A
Retailer 10
-
$1,826 NZD
$1,029 USD
View
A
Retailer 11
-
$1,890 NZD
$1,065 USD
View
A
Retailer 12
-
$2,110 NZD
$1,189 USD
View
B+
Retailer 13
-
$2,630 NZD
£1,167 GBP
View
B+
Retailer 14
-
$3,172 NZD
A$2,750 AUD
View
B+
Retailer 15
-
$4,258 NZD
$2,400 USD
View
B
Retailer 16
-
$5,128 NZD
$2,890 USD
View
Most Expensive
B
Brilliant Earth
16112448Y · Oct 31
$6,068 NZD
$3,420 USD
View
16 more retailers have this diamond
Prices start from $479 NZDSave up to $5,589 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.

A+
1.67ct Radiant
$479 NZD