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Round|Natural|IGI

1.51ct I IF Round Natural Diamond

EX • I/IF • IGI 693503105

Shape and cutting style on the report: Round brilliant

Certificate IGI 693503105

Diamond specifications and retailer prices

From $7,327 AUD
As of November 5, 2026
Save $6,965 AUD (49%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $15,816 AUD at NZ Jewellers · As of September 19, 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 I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 693503105. Listed at 15 retailers as of November 4, 2026, with a 95% 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
I
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 693503105
Dimensions7.28 × 7.22 × 4.56 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.28 mm7.22 mm1.51 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 693503105
Side View
Table 58.0%Crown 36.1°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.8%

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: Nov 5
Current: $9,361 AUD|Low: $7,138 AUD|High: $14,292 AUD|Avg: $9,669 AUD|+1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6$7,327 AUD
Retailer 2$8,200 AUD
Retailer 8$8,482 AUD
Retailer 10$8,980 AUD
Retailer 7$9,021 AUD
Retailer 1$9,361 AUD
Retailer 4$9,622 AUD
Retailer 5$9,961 AUD
Retailer 3$11,868 AUD
Retailer 9$14,292 AUD

28 data points across 10 retailers

15 retailers$7,327 AUD to $14,292 AUD

A
Cheapest Retailer
-
$7,327 AUD
A
Retailer 2
-
$8,165 AUD
View
A
Retailer 3
-
$8,200 AUD
View
A
Retailer 4
-
$8,482 AUD
View
A
Retailer 5
-
$8,980 AUD
View
Final sale: no returns
A
Retailer 6
-
$9,021 AUD
View
A
Retailer 7
-
$9,361 AUD
View
Retailer 8
-
$9,511 AUD
View
Price last confirmed 44 days ago
A
Retailer 9
-
$9,622 AUD
View
A
Retailer 10
-
$9,684 AUD
View
A
Retailer 11
-
$9,961 AUD
View
Retailer 12
-
$10,912 AUD
View
Price last confirmed 45 days ago
B+
Retailer 13
-
$11,868 AUD
View
B+
Retailer 14
-
$14,292 AUD
View
Most Expensive
NZ Jewellers
8e40e6fa-e306-4c29-a413-7b33e266e2f8 · Sep 19
$15,816 AUD
$11,072 USD
View
Price last confirmed 47 days ago
14 more retailers have this diamond
Prices start from $7,327 AUDSave up to $6,965 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
$7,327 AUD