Radiant|Natural|GIA

5.12ct F SI1 Radiant Natural Diamond

VG • F/SI1 • GIA 5241071918

Certificate GIA 5241071918

Diamond specifications and retailer prices

From $147,013 CAD
$105,242 USD
As of October 29, 2026
Save $16,377 CAD (10%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $163,390 CAD at William & Sons Jewelers · As of October 30, 2026
View at William & Sons Jewelers

About this 5.12ct natural radiant diamond

This 5.12ct natural radiant sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5241071918. Listed at 5 retailers as of October 29, 2026, with a relatively tight 11% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

5.12
Carat
F
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5241071918
Dimensions12.23 × 8.68 × 5.80 mm
L/W Ratio1.41
Top View
12.23 mm8.68 mm5.12 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5241071918
Side View
Table 67.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 66.8%

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 29
Current: $151,593 CAD|Low: $146,985 CAD|High: $169,768 CAD|Avg: $159,230 CAD|-2.2%
Retailer 1
Retailer 2
Retailer 3
William & Sons Jewelers
October 31, 2026
Retailer 3$147,013 CAD
Retailer 1$151,593 CAD
Retailer 2$155,895 CAD
William & Sons Jewelers$163,390 CAD

16 data points across 4 retailers

5 retailers$147,013 CAD to $163,390 CAD

A
Cheapest Retailer
-
$147,013 CAD
$105,242 USD
A
Retailer 2
-
$151,593 CAD
₹10,335,356 INR
View
B+
Retailer 3
-
$155,895 CAD
$111,601 USD
View
B+
Retailer 4
-
$161,148 CAD
A$177,479 AUD
View
Most Expensive
B+
William & Sons Jewelers
cert_5241071918 · Oct 30
$163,390 CAD
$116,966 USD
View
Final sale: no returns
4 more retailers have this diamond
Prices start from $147,013 CADSave up to $16,377 CAD

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
5.12ct Radiant
$147,013 CAD