CaratHunter
Plans
Radiant|Natural|GIA

1.51ct I SI2 Radiant Natural Diamond

EX • I/SI2 • GIA 2233843136

Certificate GIA 2233843136

Diamond specifications and retailer prices

From $7,443 AUD
$5,216 USD
As of November 1, 2026
Save $8,310 AUD (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $15,753 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2233843136. Listed at 17 retailers as of October 30, 2026, with prices from $7,443 to $15,753, a $8,310 spread on the same certified stone. NZ Jewellers lists it at $15,753. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2233843136
Dimensions7.93 × 5.95 × 4.02 mm
L/W Ratio1.33
Culet sizeNone
Top View
7.93 mm5.95 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2233843136
Side View
Table 66.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.6%

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: Nov 1
Current: $15,753 AUD|Low: $7,220 AUD|High: $16,271 AUD|Avg: $9,852 AUD|-3.2%
NZ Jewellers
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
Retailer 17
November 2, 2026
Retailer 7$7,443 AUD
Retailer 13$7,876 AUD
Retailer 8$7,942 AUD
Retailer 4$8,533 AUD
Retailer 5$8,533 AUD
Retailer 16$8,533 AUD
Retailer 17$8,687 AUD
Retailer 10$9,035 AUD
Retailer 3$9,503 AUD
Retailer 15$9,503 AUD
Retailer 14$9,831 AUD
Retailer 6$9,846 AUD
Retailer 2$10,288 AUD
Retailer 9$10,385 AUD
Retailer 12$13,652 AUD
Retailer 11$13,878 AUD
NZ Jewellers$15,753 AUD

43 data points across 17 retailers

17 retailers$7,443 AUD to $15,753 AUD

A
Cheapest Retailer
-
$7,443 AUD
$5,216 USD
B+
Retailer 2
-
$7,876 AUD
$5,520 USD
View
Final sale: no returns
B+
Retailer 3
-
$7,942 AUD
$5,566 USD
View
B+
Retailer 4
-
$8,533 AUD
$5,980 USD
View
B+
Retailer 5
-
$8,533 AUD
$5,980 USD
View
B+
Retailer 6
-
$8,533 AUD
$5,980 USD
View
B+
Retailer 7
-
$8,687 AUD
$6,088 USD
View
B+
Retailer 8
-
$9,035 AUD
£4,985 GBP
View
B+
Retailer 9
-
$9,346 AUD
$6,550 USD
View
B+
Retailer 10
-
$9,503 AUD
$6,660 USD
View
B+
Retailer 11
-
$9,503 AUD
$6,660 USD
View
B+
Retailer 12
-
$9,831 AUD
$6,890 USD
View
B+
Retailer 13
-
$9,846 AUD
$6,900 USD
View
B+
Retailer 14
-
$10,288 AUD
€6,867 EUR
View
B
Retailer 15
-
$13,652 AUD
$9,567 USD
View
B
Retailer 16
-
$13,878 AUD
£7,658 GBP
View
Most Expensive
B
NZ Jewellers
2c317112-8905-4cc0-8e10-deb747694a85 · Oct 30
$15,753 AUD
$11,040 USD
View
16 more retailers have this diamond
Prices start from $7,443 AUDSave up to $8,310 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
1.51ct Radiant
$7,443 AUD