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Radiant|Lab Grown|IGI

1.68ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG744514676

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

Certificate IGI LG744514676

Diamond specifications and retailer prices

From $500 NZD
$282 USD
As of October 30, 2026
Save $5,515 NZD (92%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $6,015 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.68ct lab-grown radiant diamond

This 1.68ct 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 LG744514676 or 744514676. Listed at 17 retailers as of October 30, 2026, with prices from $500 to $6,015, a $5,515 spread on the same certified stone. Brilliant Earth lists it at $6,015. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.68
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.7°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG744514676
Dimensions8.23 × 5.73 × 4.13 mm
L/W Ratio1.44
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
8.23 mm5.73 mm1.68 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG744514676
Side View
Table 66.0%Crown 45.7°Girdle: ThickPavilion 37.3°Culet: NoneDepth 72.1%

Caratlytics Score

How it works →
A
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 30
Current: $6,015 NZD|Low: $500 NZD|High: $8,854 NZD|Avg: $2,390 NZD|-32.1%
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 14$500 NZD
Retailer 6$580 NZD
Retailer 9$625 NZD
Retailer 15$935 NZD
Retailer 3$1,020 NZD
Retailer 10$1,020 NZD
Retailer 2$1,135 NZD
Retailer 13$1,595 NZD
Retailer 8$1,718 NZD
Retailer 17$1,904 NZD
Retailer 5$1,956 NZD
Retailer 4$2,200 NZD
Retailer 12$2,758 NZD
Retailer 11$3,184 NZD
Retailer 16$4,436 NZD
Retailer 7$5,154 NZD
Brilliant Earth$6,015 NZD

37 data points across 17 retailers

17 retailers$500 NZD to $6,015 NZD

A
Cheapest Retailer
-
$500 NZD
$282 USD
A
Retailer 2
-
$580 NZD
$327 USD
View
A
Retailer 3
-
$625 NZD
$352 USD
View
Final sale: no returns
A
Retailer 4
-
$935 NZD
$527 USD
View
A
Retailer 5
-
$1,020 NZD
$575 USD
View
A
Retailer 6
-
$1,020 NZD
$575 USD
View
A
Retailer 7
-
$1,135 NZD
€609 EUR
View
A
Retailer 8
-
$1,595 NZD
A$1,383 AUD
View
A
Retailer 9
-
$1,718 NZD
$968 USD
View
B+
Retailer 10
-
$1,904 NZD
$1,073 USD
View
A
Retailer 11
-
$1,956 NZD
$1,102 USD
View
B+
Retailer 12
-
$2,200 NZD
$1,240 USD
View
B+
Retailer 13
-
$2,758 NZD
£1,224 GBP
View
B+
Retailer 14
-
$3,184 NZD
A$2,761 AUD
View
B
Retailer 15
-
$4,436 NZD
$2,500 USD
View
B
Retailer 16
-
$5,154 NZD
$2,905 USD
View
Most Expensive
B
Brilliant Earth
17496203Y · Oct 31
$6,015 NZD
$3,390 USD
View
16 more retailers have this diamond
Prices start from $500 NZDSave up to $5,515 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
1.68ct Radiant
$500 NZD