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Radiant|Lab Grown|GCAL

5.16ct D FL Radiant Lab Grown Diamond

ID • D/FL

Diamond specifications and retailer prices

From $16,649 AUD
$11,695 USD
As of October 28, 2026
Save $43,364 AUD (72%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $60,013 AUD at Blue Nile · As of October 29, 2026
View at Blue Nile

About this 5.16ct lab-grown radiant diamond

This 5.16ct 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 GCAL. Listed at 5 retailers as of October 28, 2026, with prices from $16,649 to $60,013, a $43,364 spread on the same certified stone. Blue Nile lists it at $60,013. 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

5.16
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGCAL
Dimensions11.91 × 8.43 × 5.73 mm
L/W Ratio1.41
Top View
11.91 mm8.43 mm5.16 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGCAL
Side View
Table 63.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.0%

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 28
Current: $60,013 AUD|Low: $16,649 AUD|High: $137,618 AUD|Avg: $39,397 AUD|-5.7%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 3$16,649 AUD
Retailer 5$16,904 AUD
Retailer 2$19,448 AUD
Retailer 7$19,838 AUD
Retailer 6$20,283 AUD
Retailer 4$51,901 AUD
Blue Nile$60,013 AUD

14 data points across 7 retailers

5 retailers$16,649 AUD to $60,013 AUD

A
Cheapest Retailer
-
$16,649 AUD
$11,695 USD
A
Retailer 2
-
$17,503 AUD
$12,295 USD
View
Retailer 3
-
$19,838 AUD
$13,935 USD
View
Price last confirmed 23 days ago
B
Retailer 4
-
$51,901 AUD
$36,457 USD
View
Most Expensive
B
Blue Nile
30235244 · Oct 29
$60,013 AUD
$42,156 USD
View
4 more retailers have this diamond
Prices start from $16,649 AUDSave up to $43,364 AUD

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
5.16ct Radiant
$16,649 AUD