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Radiant|Lab Grown|IGI

1.48ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG818654301

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

Certificate IGI LG818654301

Diamond specifications and retailer prices

From $545 NZD
As of November 4, 2026
Save $4,742 NZD (90%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $5,854 NZD at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.48ct lab-grown radiant diamond

This 1.48ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818654301 or 818654301. Listed at 19 retailers as of November 4, 2026, with a 871% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.48
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.5°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818654301
Dimensions7.90 × 5.79 × 3.80 mm
L/W Ratio1.36
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
7.90 mm5.79 mm1.48 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818654301
Side View
Table 66.0%Crown 41.5°Girdle: MED-STKPavilion 36.5°Culet: NoneDepth 65.6%

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: Nov 4
Current: $5,854 NZD|Low: $545 NZD|High: $7,806 NZD|Avg: $2,115 NZD|-0.5%
Rare Carat
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
Retailer 18
Retailer 19
November 5, 2026
Retailer 8$545 NZD
Retailer 17$632 NZD
Retailer 13$639 NZD
Retailer 5$676 NZD
Retailer 11$692 NZD
Retailer 16$949 NZD
Retailer 15$1,103 NZD
Retailer 2$1,190 NZD
Retailer 9$1,192 NZD
Retailer 10$1,283 NZD
Retailer 18$1,987 NZD
Retailer 3$2,077 NZD
Retailer 14$2,173 NZD
Retailer 4$2,255 NZD
Retailer 6$2,443 NZD
Retailer 12$2,700 NZD
Retailer 7$2,771 NZD
Retailer 19$5,287 NZD
Rare Carat$5,854 NZD

33 data points across 19 retailers

19 retailers$545 NZD to $5,287 NZD

A+
Cheapest Retailer
-
$545 NZD
A
Retailer 2
-
$632 NZD
View
A
Retailer 3
-
$639 NZD
View
Final sale: no returns
A
Retailer 4
-
$676 NZD
View
Retailer 5
-
$692 NZD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$949 NZD
View
A
Retailer 7
-
$1,103 NZD
View
A
Retailer 8
-
$1,190 NZD
View
A
Retailer 9
-
$1,192 NZD
View
A
Retailer 10
-
$1,283 NZD
View
B+
Retailer 11
-
$1,987 NZD
View
B+
Retailer 12
-
$2,077 NZD
View
B+
Retailer 13
-
$2,173 NZD
View
B+
Retailer 14
-
$2,255 NZD
View
B+
Retailer 15
-
$2,443 NZD
View
B+
Retailer 16
-
$2,700 NZD
View
B+
Retailer 17
-
$2,771 NZD
View
B
Retailer 18
-
$5,287 NZD
View
Most Expensive
Rare Carat
PD-235961 · Oct 21
$5,854 NZD
$3,300 USD
View
Price last confirmed 14 days ago
18 more retailers have this diamond
Prices start from $545 NZDSave up to $4,742 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+
1.48ct Radiant
$545 NZD