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Radiant|Natural|GIA

1.51ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 5182557110

Certificate GIA 5182557110

Diamond specifications and retailer prices

From $10,229 AUD
$7,169 USD
As of November 2, 2026
Save $4,139 AUD (29%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $14,369 AUD at Jared · As of November 2, 2026
View at Jared

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5182557110. Listed at 8 retailers as of November 2, 2026, with prices from $10,229 to $14,369, a $4,139 spread on the same certified stone. Jared lists it at $14,369. 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

1.51
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5182557110
Dimensions6.91 × 6.42 × 4.06 mm
L/W Ratio1.08
Top View
6.91 mm6.42 mm1.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5182557110
Side View
Table 70.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $13,810 AUD|Low: $10,128 AUD|High: $14,016 AUD|Avg: $12,408 AUD|-0.4%
Retailer 1
Retailer 2
Retailer 3
October 31, 2026
Retailer 2$10,229 AUD
Retailer 3$13,099 AUD
Retailer 1$13,810 AUD

32 data points across 3 retailers

8 retailers$10,229 AUD to $14,369 AUD

B+
Cheapest Retailer
-
$10,229 AUD
$7,169 USD
B+
Retailer 2
-
$10,969 AUD
View
B+
Retailer 3
-
$11,309 AUD
$7,926 USD
View
B+
Retailer 4
-
$13,099 AUD
$9,180 USD
View
B+
Retailer 5
-
$13,810 AUD
£7,621 GBP
View
B
Retailer 6
-
$13,912 AUD
$9,750 USD
View
B
Retailer 7
-
$13,912 AUD
$9,750 USD
View
Most Expensive
B
Jared
130463369 · Nov 2
$14,369 AUD
$10,070 USD
View
7 more retailers have this diamond
Prices start from $10,229 AUDSave up to $4,139 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.

B+
1.51ct Radiant
$10,229 AUD