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Round|Natural|GIA

1.51ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 7553318635

Certificate GIA 7553318635

Diamond specifications and retailer prices

From $7,658 AUD
$5,367 USD
As of November 1, 2026
Save $9,021 AUD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $16,679 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7553318635. Listed at 20 retailers as of November 1, 2026, with prices from $7,658 to $16,679, a $9,021 spread on the same certified stone. NZ Jewellers lists it at $16,679. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7553318635
Dimensions7.27 × 7.31 × 4.57 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.27 mm7.31 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7553318635
Side View
Table 57.0%Crown 36.5°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 62.7%

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 1
Current: $16,679 AUD|Low: $6,572 AUD|High: $16,679 AUD|Avg: $9,786 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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 2, 2026
Retailer 12$7,342 AUD
Retailer 4$7,658 AUD
Retailer 6$7,879 AUD
Retailer 18$7,887 AUD
Retailer 8$7,984 AUD
Retailer 5$8,339 AUD
Retailer 10$8,901 AUD
Retailer 2$9,035 AUD
Retailer 20$9,201 AUD
Retailer 9$9,420 AUD
Retailer 15$9,500 AUD
Retailer 19$10,045 AUD
Retailer 21$10,045 AUD
Retailer 3$10,388 AUD
Retailer 14$10,409 AUD
Retailer 13$10,587 AUD
Retailer 17$10,666 AUD
Retailer 11$10,991 AUD
Retailer 7$14,457 AUD
Retailer 16$14,693 AUD
NZ Jewellers$16,679 AUD

29 data points across 21 retailers

20 retailers$7,658 AUD to $16,679 AUD

A
Cheapest Retailer
-
$7,658 AUD
$5,367 USD
A
Retailer 2
-
$7,879 AUD
$5,522 USD
View
A
Retailer 3
-
$7,887 AUD
$5,527 USD
View
A
Retailer 4
-
$7,984 AUD
$5,596 USD
View
A
Retailer 5
-
$8,339 AUD
$5,844 USD
View
Final sale: no returns
A
Retailer 6
-
$8,901 AUD
$6,238 USD
View
A
Retailer 7
-
$9,035 AUD
$6,332 USD
View
A
Retailer 8
-
$9,201 AUD
$6,448 USD
View
B+
Retailer 9
-
$9,296 AUD
$6,515 USD
View
B+
Retailer 10
-
$9,420 AUD
$6,602 USD
View
A
Retailer 11
-
$9,500 AUD
£5,242 GBP
View
B+
Retailer 12
-
$10,045 AUD
$7,040 USD
View
B+
Retailer 13
-
$10,045 AUD
$7,040 USD
View
B+
Retailer 14
-
$10,388 AUD
$7,280 USD
View
B+
Retailer 15
-
$10,587 AUD
£5,842 GBP
View
B+
Retailer 16
-
$10,666 AUD
€7,119 EUR
View
Retailer 17
-
$10,991 AUD
$7,703 USD
View
Price last confirmed 19 days ago
B
Retailer 18
-
$14,457 AUD
$10,132 USD
View
B
Retailer 19
-
$14,693 AUD
£8,108 GBP
View
Most Expensive
B
NZ Jewellers
08651589-c7a7-4dc0-a3b8-920a5177512a · Nov 2
$16,679 AUD
$11,689 USD
View
19 more retailers have this diamond
Prices start from $7,658 AUDSave up to $9,021 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
$7,658 AUD