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Round|Natural|GIA

1.51ct F I1 Round Natural Diamond

EX • F/I1 • GIA 1559183875

Certificate GIA 1559183875

Diamond specifications and retailer prices

From $7,815 AUD
$5,477 USD
As of November 2, 2026
Save $2,452 AUD (24%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $13,813 AUD at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded F colour (colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 1559183875. Listed at 8 retailers as of November 1, 2026, with a 31% 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
F
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1559183875
Dimensions7.28 × 7.31 × 4.58 mm
L/W Ratio1.00
Culet sizeNone
Top View
7.28 mm7.31 mm1.51 ctF / I1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559183875
Side View
Table 56.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.6%

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 2
Current: $10,267 AUD|Low: $4,115 AUD|High: $13,813 AUD|Avg: $8,233 AUD|+7.4%
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
Retailer 14
Wholesale Diamonds Direct
November 1, 2026
Retailer 10$4,115 AUD
Retailer 5$4,988 AUD
Retailer 6$5,037 AUD
Retailer 2$6,494 AUD
Retailer 3$7,353 AUD
Retailer 8$7,815 AUD
Retailer 7$8,162 AUD
Retailer 11$8,604 AUD
Retailer 4$8,674 AUD
Retailer 9$9,104 AUD
Retailer 12$9,617 AUD
Retailer 14$9,617 AUD
Retailer 13$9,945 AUD
Retailer 1$10,267 AUD
Wholesale Diamonds Direct$13,813 AUD

12 data points across 15 retailers

8 retailers$7,815 AUD to $10,267 AUD

B+
Cheapest Retailer
-
$7,815 AUD
$5,477 USD
B+
Retailer 2
-
$8,162 AUD
$5,720 USD
View
B+
Retailer 3
-
$9,104 AUD
$6,380 USD
View
B
Retailer 4
-
$9,617 AUD
$6,740 USD
View
B
Retailer 5
-
$9,617 AUD
$6,740 USD
View
B
Retailer 6
-
$9,945 AUD
$6,970 USD
View
B
Retailer 7
-
$10,267 AUD
€6,853 EUR
View
Most Expensive
Wholesale Diamonds Direct
493092807 · Oct 26
$13,813 AUD
$9,680 USD
View
Price last confirmed 7 days ago
7 more retailers have this diamond
Prices start from $7,815 AUDSave up to $2,452 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
$7,815 AUD