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Round|Natural|GIA

1.51ct F VS1 Round Natural Diamond

ID • F/VS1 • GIA 148

Certificate GIA 148

Diamond specifications and retailer prices

From $13,828 AUD
As of November 1, 2026
Save $7,218 AUD (34%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $21,046 AUD at Helzberg Diamonds · As of November 4, 2026
View at Helzberg Diamonds

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA. Listed at 7 retailers as of November 1, 2026, with prices from $13,828 to $21,046, a $7,218 spread on the same certified stone. Helzberg Diamonds lists it at $21,046. 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 148
Dimensions7.31 × 7.35 × 4.56 mm
L/W Ratio1.01
Top View
7.31 mm7.35 mm1.51 ctF / VS1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 148
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.1%

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: $21,046 AUD|Low: $13,828 AUD|High: $21,689 AUD|Avg: $16,202 AUD|-3.0%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 4, 2026
Retailer 5$13,828 AUD
Retailer 4$14,449 AUD
Retailer 6$14,531 AUD
Retailer 3$14,801 AUD
Retailer 8$15,508 AUD
Retailer 2$17,219 AUD
Retailer 7$17,222 AUD
Helzberg Diamonds$21,046 AUD

39 data points across 8 retailers

7 retailers$13,828 AUD to $21,046 AUD

A
Cheapest Retailer
-
$13,828 AUD
A
Retailer 2
-
$14,449 AUD
View
A
Retailer 3
-
$14,531 AUD
View
A
Retailer 4
-
$14,801 AUD
View
B+
Retailer 5
-
$17,219 AUD
View
B+
Retailer 6
-
$17,222 AUD
View
Most Expensive
B+
Helzberg Diamonds
XZRMIKJGLJPLH · Nov 4
$21,046 AUD
$14,733 USD
View
6 more retailers have this diamond
Prices start from $13,828 AUDSave up to $7,218 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
$13,828 AUD