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Radiant|Lab Grown|IGI

5.28ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG787623453

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

Certificate IGI LG787623453

Diamond specifications and retailer prices

From $19,391 NZD
$10,929 USD
As of October 30, 2026
Save $47,585 NZD (71%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $66,976 NZD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 5.28ct lab-grown radiant diamond

This 5.28ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG787623453 or 787623453. Listed at 11 retailers as of October 30, 2026, with prices from $19,391 to $66,976, a $47,585 spread on the same certified stone. Taylor and Hart lists it at $66,976. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

5.28
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.3°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787623453
Dimensions12.11 × 8.73 × 5.84 mm
L/W Ratio1.39
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
12.11 mm8.73 mm5.28 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787623453
Side View
Table 62.0%Crown 42.3°Girdle: Slightly ThickPavilion 35.1°Culet: NoneDepth 66.9%

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: $31,547 NZD|Low: $19,391 NZD|High: $121,751 NZD|Avg: $42,619 NZD|-40.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Taylor and Hart
October 30, 2026
Retailer 8$19,391 NZD
Retailer 10$21,299 NZD
Retailer 11$21,709 NZD
Retailer 7$22,330 NZD
Retailer 4$26,552 NZD
Retailer 1$31,547 NZD
Retailer 3$33,249 NZD
Retailer 5$35,213 NZD
Retailer 6$37,512 NZD
Retailer 9$61,831 NZD
Taylor and Hart$66,976 NZD
Retailer 2$121,751 NZD

32 data points across 12 retailers

11 retailers$19,391 NZD to $66,976 NZD

A
Cheapest Retailer
-
$19,391 NZD
$10,929 USD
A
Retailer 2
-
$21,299 NZD
$12,004 USD
View
A
Retailer 3
-
$21,709 NZD
$12,235 USD
View
A
Retailer 4
-
$22,330 NZD
$12,585 USD
View
A
Retailer 5
-
$26,552 NZD
£11,783 GBP
View
A
Retailer 6
-
$31,547 NZD
$17,780 USD
View
A
Retailer 7
-
$35,213 NZD
£15,627 GBP
View
Retailer 8
-
$37,512 NZD
€20,135 EUR
View
Price last confirmed 8 days ago
B
Retailer 9
-
$61,831 NZD
$34,848 USD
View
Most Expensive
B
Taylor and Hart
OLY1CTE · Oct 30
$66,976 NZD
$37,748 USD
View
9 more retailers have this diamond
Prices start from $19,391 NZDSave up to $47,585 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
5.28ct Radiant
$19,391 NZD