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Radiant|Lab Grown|IGI

1.67ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG744514675

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

Certificate IGI LG744514675

Diamond specifications and retailer prices

From $497 NZD
$280 USD
As of October 30, 2026
Save $5,571 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 LG744514675 or 744514675. Listed at 17 retailers as of October 30, 2026, with prices from $497 to $6,068, a $5,571 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 angle39.2°
Pavilion angle32°
OriginLab Grown
Grading LabIGI
CertificateIGI LG744514675
Dimensions8.76 × 5.91 × 3.72 mm
L/W Ratio1.48
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
8.76 mm5.91 mm1.67 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG744514675
Side View
Table 65.0%Crown 39.2°Girdle: Slightly ThickPavilion 32°Culet: NoneDepth 62.9%

Caratlytics Score

How it works →
A
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 30
Current: $6,068 NZD|Low: $497 NZD|High: $7,044 NZD|Avg: $2,301 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
October 31, 2026
Retailer 12$497 NZD
Retailer 4$577 NZD
Retailer 9$621 NZD
Retailer 13$932 NZD
Retailer 16$1,017 NZD
Retailer 7$1,020 NZD
Retailer 2$1,131 NZD
Retailer 11$1,587 NZD
Retailer 8$1,698 NZD
Retailer 15$1,895 NZD
Retailer 3$1,948 NZD
Retailer 17$2,188 NZD
Retailer 6$2,801 NZD
Retailer 10$3,172 NZD
Retailer 14$4,418 NZD
Retailer 5$5,128 NZD
Brilliant Earth$6,068 NZD

33 data points across 17 retailers

17 retailers$497 NZD to $6,068 NZD

A
Cheapest Retailer
-
$497 NZD
$280 USD
A
Retailer 2
-
$577 NZD
$325 USD
View
A
Retailer 3
-
$621 NZD
$350 USD
View
Final sale: no returns
A
Retailer 4
-
$932 NZD
$525 USD
View
A
Retailer 5
-
$1,017 NZD
$573 USD
View
A
Retailer 6
-
$1,020 NZD
$575 USD
View
A
Retailer 7
-
$1,131 NZD
€607 EUR
View
A
Retailer 8
-
$1,587 NZD
A$1,376 AUD
View
A
Retailer 9
-
$1,698 NZD
$957 USD
View
A
Retailer 10
-
$1,895 NZD
$1,068 USD
View
A
Retailer 11
-
$1,948 NZD
$1,098 USD
View
B+
Retailer 12
-
$2,188 NZD
$1,233 USD
View
Retailer 13
-
$2,801 NZD
£1,243 GBP
View
Price last confirmed 13 days ago
B+
Retailer 14
-
$3,172 NZD
A$2,750 AUD
View
B
Retailer 15
-
$4,418 NZD
$2,490 USD
View
B
Retailer 16
-
$5,128 NZD
$2,890 USD
View
Most Expensive
B
Brilliant Earth
17388439Y · Oct 31
$6,068 NZD
$3,420 USD
View
16 more retailers have this diamond
Prices start from $497 NZDSave up to $5,571 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
$497 NZD