Oval|Natural|GIA

1.51ct F SI1 Oval Natural Diamond

GD • F/SI1 • GIA 6241040577

Certificate GIA 6241040577

Diamond specifications and retailer prices

From $14,474 AUD
$10,167 USD
As of November 2, 2026
Save $13,000 AUD (47%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $27,474 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6241040577. Listed at 23 retailers as of October 30, 2026, with prices from $14,474 to $27,474, a $13,000 spread on the same certified stone. NZ Jewellers lists it at $27,474. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6241040577
Dimensions8.97 × 6.61 × 4.00 mm
L/W Ratio1.36
Top View
8.97 mm6.61 mm1.51 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6241040577
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 60.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $27,474 AUD|Low: $13,738 AUD|High: $27,474 AUD|Avg: $19,626 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
November 2, 2026
Retailer 12$14,474 AUD
Retailer 9$14,606 AUD
Retailer 10$16,484 AUD
Retailer 5$17,833 AUD
Retailer 3$17,858 AUD
Retailer 8$17,933 AUD
Retailer 11$18,132 AUD
Retailer 2$19,866 AUD
Retailer 4$20,605 AUD
Retailer 7$24,218 AUD
Retailer 6$25,746 AUD
NZ Jewellers$27,474 AUD

44 data points across 12 retailers

23 retailers$14,474 AUD to $27,474 AUD

B
Cheapest Retailer
-
$14,474 AUD
$10,167 USD
B
Retailer 2
-
$14,606 AUD
$10,260 USD
View
B
Retailer 3
-
$15,295 AUD
$10,744 USD
View
B
Retailer 4
-
$15,297 AUD
$10,745 USD
View
B
Retailer 5
-
$15,649 AUD
CA$15,267 CAD
View
B
Retailer 6
-
$15,747 AUD
$11,062 USD
View
B
Retailer 7
-
$16,250 AUD
$11,415 USD
View
B
Retailer 8
-
$16,484 AUD
$11,579 USD
View
B
Retailer 9
-
$16,484 AUD
$11,579 USD
View
Final sale: no returns
B
Retailer 10
-
$16,622 AUD
$11,676 USD
View
B
Retailer 11
-
$17,833 AUD
£9,863 GBP
View
B
Retailer 12
-
$17,858 AUD
$12,544 USD
View
Retailer 13
-
$17,933 AUD
View
Price last confirmed 9 days ago
B
Retailer 14
-
$18,132 AUD
$12,737 USD
View
B
Retailer 15
-
$19,076 AUD
$13,400 USD
View
B
Retailer 16
-
$19,133 AUD
$13,440 USD
View
B
Retailer 17
-
$19,133 AUD
$13,440 USD
View
B
Retailer 18
-
$19,774 AUD
$13,890 USD
View
B
Retailer 19
-
$19,866 AUD
€13,290 EUR
View
C
Retailer 20
-
$20,605 AUD
$14,474 USD
View
B
Retailer 21
-
$24,218 AUD
ZAR 274,826 ZAR
View
B
Retailer 22
-
$25,746 AUD
£14,240 GBP
View
Most Expensive
C
NZ Jewellers
d299a479-4646-4d87-a68c-b9fe3a88917a · Oct 30
$27,474 AUD
$19,299 USD
View
22 more retailers have this diamond
Prices start from $14,474 AUDSave up to $13,000 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 Oval
$14,474 AUD