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Radiant|Lab Grown|IGI

5.05ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG648486284

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

Certificate IGI LG648486284

Diamond specifications and retailer prices

From $889 NZD
$501 USD
As of October 30, 2026
Save $6,581 NZD (88%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $7,470 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 5.05ct lab-grown radiant diamond

This 5.05ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG648486284 or 648486284. Listed at 15 retailers as of October 30, 2026, with prices from $889 to $7,470, a $6,581 spread on the same certified stone. Brilliant Earth lists it at $7,470. 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

5.05
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.1°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG648486284
Dimensions11.98 × 8.39 × 5.75 mm
L/W Ratio1.43
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.98 mm8.39 mm5.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG648486284
Side View
Table 66.0%Crown 44.1°Girdle: MediumPavilion 35.4°Culet: NoneDepth 68.5%

Caratlytics Score

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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: $7,470 NZD|Low: $889 NZD|High: $9,031 NZD|Avg: $2,671 NZD|-17.3%
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
October 31, 2026
Retailer 16$889 NZD
Retailer 12$995 NZD
Retailer 4$1,104 NZD
Retailer 5$1,104 NZD
Retailer 15$1,160 NZD
Retailer 10$1,348 NZD
Retailer 8$1,670 NZD
Retailer 2$1,774 NZD
Retailer 9$1,835 NZD
Retailer 6$1,881 NZD
Retailer 13$2,846 NZD
Retailer 3$2,901 NZD
Retailer 7$3,531 NZD
Retailer 11$4,610 NZD
Retailer 14$5,225 NZD
Brilliant Earth$7,470 NZD

38 data points across 16 retailers

15 retailers$889 NZD to $7,470 NZD

A
Cheapest Retailer
-
$889 NZD
$501 USD
A
Retailer 2
-
$995 NZD
$561 USD
View
A
Retailer 3
-
$1,104 NZD
$622 USD
View
Retailer 4
-
$1,104 NZD
$622 USD
View
Price last confirmed 15 days ago
Retailer 5
-
$1,160 NZD
£515 GBP
View
Price last confirmed 14 days ago
A
Retailer 6
-
$1,348 NZD
$760 USD
View
A
Retailer 7
-
$1,774 NZD
€952 EUR
View
A
Retailer 8
-
$1,835 NZD
£815 GBP
View
A
Retailer 9
-
$1,881 NZD
$1,060 USD
View
B+
Retailer 10
-
$2,846 NZD
$1,604 USD
View
B+
Retailer 11
-
$2,901 NZD
$1,635 USD
View
B+
Retailer 12
-
$3,531 NZD
$1,990 USD
View
B
Retailer 13
-
$4,610 NZD
£2,046 GBP
View
B
Retailer 14
-
$5,225 NZD
$2,945 USD
View
Most Expensive
B
Brilliant Earth
11435167A · Oct 31
$7,470 NZD
$4,210 USD
View
14 more retailers have this diamond
Prices start from $889 NZDSave up to $6,581 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
5.05ct Radiant
$889 NZD