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Round|Natural|GIA

1.51ct D I1 Round Natural Diamond

EX • D/I1 • GIA 7506022576

Shape and cutting style on the report: Round

Certificate GIA 7506022576

Diamond specifications and retailer prices

From $6,960 AUD
$4,889 USD
As of October 30, 2026
Save $6,388 AUD (48%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $13,348 AUD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded D colour (colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 7506022576. Listed at 9 retailers as of October 30, 2026, with a 92% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 7506022576
Dimensions7.31 × 7.35 × 4.53 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.31 mm7.35 mm1.51 ctD / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7506022576
Side View
Table 60.0%Crown 34°GirdlePavilion 41.8°Culet: NoneDepth 61.8%

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: $8,991 AUD|Low: $5,870 AUD|High: $9,497 AUD|Avg: $7,693 AUD|+2.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 6$5,870 AUD
Retailer 4$6,960 AUD
Retailer 3$7,030 AUD
Retailer 2$7,981 AUD
Retailer 1$8,991 AUD
Retailer 5$9,497 AUD

17 data points across 6 retailers

9 retailers$6,960 AUD to $13,348 AUD

A
Cheapest Retailer
-
$6,960 AUD
$4,889 USD
A
Retailer 2
-
$7,030 AUD
$4,938 USD
View
Retailer 3
-
$7,981 AUD
$5,606 USD
View
Price last confirmed 31 days ago
B+
Retailer 4
-
$7,981 AUD
$5,606 USD
View
Retailer 5
-
$7,981 AUD
$5,606 USD
View
Price last confirmed 33 days ago
B+
Retailer 6
-
$8,991 AUD
€6,015 EUR
View
Retailer 7
-
$9,209 AUD
$6,469 USD
View
Price last confirmed 33 days ago
B
Retailer 8
-
$13,348 AUD
$9,376 USD
View
Most Expensive
NZ Jewellers
4d78864c-9dd5-4cae-a22f-1f6ef20f7649 · Sep 28
$13,348 AUD
$9,376 USD
View
Price last confirmed 34 days ago
8 more retailers have this diamond
Prices start from $6,960 AUDSave up to $6,388 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 Round
$6,960 AUD