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Round|Natural|GIA

1.51ct I IF Round Natural Diamond

EX • I/IF • GIA 6542428287

Certificate GIA 6542428287

Diamond specifications and retailer prices

From $10,612 AUD
As of November 4, 2026
Save $6,453 AUD (38%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $20,959 AUD at NZ Jewellers · As of September 1, 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 GIA 6542428287. Listed at 22 retailers as of November 4, 2026, with a 61% 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
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6542428287
Dimensions7.27 × 7.31 × 4.55 mm
L/W Ratio1.01
Top View
7.27 mm7.31 mm1.51 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6542428287
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.4%

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 4
Current: $14,979 AUD|Low: $8,925 AUD|High: $17,353 AUD|Avg: $12,346 AUD|+1.1%
Retailer 1
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 5, 2026
Retailer 12$10,612 AUD
Retailer 9$10,738 AUD
Retailer 7$11,248 AUD
Retailer 3$11,285 AUD
Retailer 11$11,332 AUD
Retailer 5$11,372 AUD
Retailer 10$11,622 AUD
Retailer 2$12,332 AUD
Retailer 13$12,542 AUD
Retailer 6$12,615 AUD
Retailer 4$13,279 AUD
Retailer 1$14,979 AUD
Retailer 8$17,065 AUD

41 data points across 13 retailers

22 retailers$10,612 AUD to $17,065 AUD

A
Cheapest Retailer
-
$10,612 AUD
A
Retailer 2
-
$10,738 AUD
View
A
Retailer 3
-
$11,248 AUD
View
A
Retailer 4
-
$11,285 AUD
View
A
Retailer 5
-
$11,332 AUD
View
Final sale: no returns
Retailer 6
-
$11,334 AUD
View
Price last confirmed 21 days ago
Retailer 7
-
$11,622 AUD
View
Price last confirmed 15 days ago
Retailer 8
-
$12,278 AUD
View
Price last confirmed 29 days ago
Retailer 9
-
$12,321 AUD
View
Price last confirmed 43 days ago
A
Retailer 10
-
$12,332 AUD
View
Retailer 11
-
$12,467 AUD
View
Price last confirmed 22 days ago
A
Retailer 12
-
$12,542 AUD
View
A
Retailer 13
-
$12,615 AUD
View
B+
Retailer 14
-
$13,279 AUD
View
Retailer 15
-
$14,166 AUD
View
Price last confirmed 28 days ago
Retailer 16
-
$14,215 AUD
View
Price last confirmed 45 days ago
Retailer 17
-
$14,459 AUD
View
Price last confirmed 67 days ago
B+
Retailer 18
-
$14,979 AUD
View
B+
Retailer 19
-
$17,065 AUD
View
Retailer 20
-
$20,535 AUD
View
Price last confirmed 34 days ago
Retailer 21
-
$20,606 AUD
View
Price last confirmed 42 days ago
Most Expensive
NZ Jewellers
d6eaf69a-94f9-4a94-940a-7acf32defcc0 · Sep 1
$20,959 AUD
$14,672 USD
View
Price last confirmed 65 days ago
21 more retailers have this diamond
Prices start from $10,612 AUDSave up to $6,453 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
$10,612 AUD