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Oval|Natural|GIA

1.50ct H SI1 Oval Natural Diamond

VG • H/SI1 • GIA 6451963361

Certificate GIA 6451963361

Diamond specifications and retailer prices

From $10,588 AUD
As of November 4, 2026
Save $13,314 AUD (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $23,902 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct natural oval diamond

This 1.5ct natural oval sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6451963361. Listed at 20 retailers as of November 4, 2026, with prices from $10,588 to $23,902, a $13,314 spread on the same certified stone. NZ Jewellers lists it at $23,902. 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

1.50
Carat
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6451963361
Dimensions9.07 × 6.71 × 3.87 mm
L/W Ratio1.35
Top View
9.07 mm6.71 mm1.50 ctH / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6451963361
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 57.7%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $23,902 AUD|Low: $10,422 AUD|High: $23,902 AUD|Avg: $15,100 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 6, 2026
Retailer 9$10,588 AUD
Retailer 2$11,834 AUD
Retailer 12$12,051 AUD
Retailer 4$12,947 AUD
Retailer 5$13,138 AUD
Retailer 3$13,145 AUD
Retailer 11$13,205 AUD
Retailer 7$14,794 AUD
Retailer 10$15,611 AUD
Retailer 6$17,434 AUD
Retailer 8$19,862 AUD
NZ Jewellers$23,902 AUD

44 data points across 12 retailers

20 retailers$10,588 AUD to $23,902 AUD

B
Cheapest Retailer
-
$10,588 AUD
B
Retailer 2
-
$11,122 AUD
View
B
Retailer 3
-
$11,189 AUD
View
B
Retailer 4
-
$11,834 AUD
View
Final sale: no returns
B
Retailer 5
-
$11,891 AUD
View
Retailer 6
-
$11,950 AUD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$12,051 AUD
View
B
Retailer 8
-
$12,736 AUD
View
B
Retailer 9
-
$12,947 AUD
View
B
Retailer 10
-
$13,138 AUD
View
B
Retailer 11
-
$13,145 AUD
View
Retailer 12
-
$13,205 AUD
View
Price last confirmed 14 days ago
B
Retailer 13
-
$13,972 AUD
View
B
Retailer 14
-
$13,972 AUD
View
B
Retailer 15
-
$14,438 AUD
View
B
Retailer 16
-
$14,794 AUD
View
B
Retailer 17
-
$15,611 AUD
View
B
Retailer 18
-
$17,434 AUD
View
B
Retailer 19
-
$19,862 AUD
View
Most Expensive
C
NZ Jewellers
b784cdeb-2975-4b7d-ae68-fd714030a062 · Nov 5
$23,902 AUD
$16,423 USD
View
19 more retailers have this diamond
Prices start from $10,588 AUDSave up to $13,314 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
1.50ct Oval
$10,588 AUD