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Round|Natural|GIA

1.51ct H I1 Round Natural Diamond

EX • H/I1 • GIA 5513587675

Certificate GIA 5513587675

Diamond specifications and retailer prices

From $7,291 AUD
$5,110 USD
As of November 1, 2026
Save $8,680 AUD (54%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $15,971 AUD at NZ Jewellers · As of November 2, 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 H colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 5513587675. Listed at 11 retailers as of November 1, 2026, with prices from $7,291 to $15,971, a $8,680 spread on the same certified stone. NZ Jewellers lists it at $15,971. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
H
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 5513587675
Dimensions7.46 × 7.40 × 4.51 mm
L/W Ratio1.01
Star length55%
Lower girdle75%
Top View
7.46 mm7.40 mm1.51 ctH / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5513587675
Side View
Table 59.0%Crown 31.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 60.6%

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 1
Current: $15,971 AUD|Low: $7,291 AUD|High: $15,971 AUD|Avg: $9,653 AUD
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
November 1, 2026
Retailer 6$7,291 AUD
Retailer 8$7,545 AUD
Retailer 12$7,601 AUD
Retailer 7$8,651 AUD
Retailer 9$8,651 AUD
Retailer 11$8,651 AUD
Retailer 3$9,632 AUD
Retailer 4$9,632 AUD
Retailer 5$9,960 AUD
Retailer 10$9,983 AUD
Retailer 2$10,387 AUD
Retailer 13$11,385 AUD
NZ Jewellers$15,971 AUD

21 data points across 13 retailers

11 retailers$7,291 AUD to $15,971 AUD

B+
Cheapest Retailer
-
$7,291 AUD
$5,110 USD
B+
Retailer 2
-
$7,545 AUD
$5,288 USD
View
B
Retailer 3
-
$8,651 AUD
$6,063 USD
View
B
Retailer 4
-
$8,651 AUD
$6,063 USD
View
B
Retailer 5
-
$8,651 AUD
$6,063 USD
View
B
Retailer 6
-
$9,632 AUD
$6,750 USD
View
B
Retailer 7
-
$9,632 AUD
$6,750 USD
View
B
Retailer 8
-
$9,960 AUD
$6,980 USD
View
B
Retailer 9
-
$9,983 AUD
$6,996 USD
View
B
Retailer 10
-
$10,387 AUD
€6,933 EUR
View
Most Expensive
B
NZ Jewellers
47719a08-0a63-4386-9ef9-de956c3aea11 · Nov 2
$15,971 AUD
$11,193 USD
View
10 more retailers have this diamond
Prices start from $7,291 AUDSave up to $8,680 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 Round
$7,291 AUD