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Oval|Natural|GIA

1.50ct I SI1 Oval Natural Diamond

VG • I/SI1 • GIA 6512264839

Certificate GIA 6512264839

Diamond specifications and retailer prices

From $9,772 AUD
$6,864 USD
As of November 1, 2026
Save $11,101 AUD (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $20,873 AUD at NZ Jewellers · As of October 30, 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 I 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 6512264839. Listed at 21 retailers as of October 30, 2026, with prices from $9,772 to $20,873, a $11,101 spread on the same certified stone. NZ Jewellers lists it at $20,873. 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
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40.3°
Pavilion angle38.95°
OriginNatural
Grading LabGIA
CertificateGIA 6512264839
Dimensions8.79 × 6.40 × 3.99 mm
L/W Ratio1.37
Top View
8.79 mm6.40 mm1.50 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6512264839
Side View
Table 56.0%Crown 40.3°Girdle: MED-THKPavilion 38.95°Culet: NoneDepth 62.4%

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 1
Current: $20,873 AUD|Low: $9,772 AUD|High: $20,873 AUD|Avg: $12,453 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
November 2, 2026
Retailer 7$9,772 AUD
Retailer 10$9,772 AUD
Retailer 4$10,421 AUD
Retailer 6$10,436 AUD
Retailer 11$10,899 AUD
Retailer 3$11,117 AUD
Retailer 8$11,187 AUD
Retailer 5$11,306 AUD
Retailer 9$11,360 AUD
Retailer 16$11,480 AUD
Retailer 15$11,819 AUD
Retailer 13$11,842 AUD
Retailer 17$11,967 AUD
Retailer 18$13,046 AUD
Retailer 2$13,632 AUD
Retailer 14$15,331 AUD
Retailer 12$17,393 AUD
NZ Jewellers$20,873 AUD

31 data points across 18 retailers

21 retailers$9,772 AUD to $20,873 AUD

B+
Cheapest Retailer
-
$9,772 AUD
$6,864 USD
B+
Retailer 2
-
$9,772 AUD
$6,864 USD
View
B
Retailer 3
-
$10,421 AUD
$7,320 USD
View
B
Retailer 4
-
$10,436 AUD
$7,331 USD
View
B
Retailer 5
-
$10,523 AUD
$7,392 USD
View
B+
Retailer 6
-
$10,899 AUD
£6,028 GBP
View
B
Retailer 7
-
$11,117 AUD
$7,809 USD
View
B
Retailer 8
-
$11,187 AUD
$7,858 USD
View
B
Retailer 9
-
$11,306 AUD
$7,942 USD
View
B
Retailer 10
-
$11,480 AUD
$8,064 USD
View
Retailer 11
-
$11,819 AUD
View
Price last confirmed 11 days ago
B
Retailer 12
-
$11,842 AUD
£6,550 GBP
View
B
Retailer 13
-
$11,944 AUD
$8,390 USD
View
B
Retailer 14
-
$11,944 AUD
$8,390 USD
View
B
Retailer 15
-
$11,967 AUD
$8,406 USD
View
B
Retailer 16
-
$12,343 AUD
$8,670 USD
View
B
Retailer 17
-
$13,046 AUD
$9,164 USD
View
B
Retailer 18
-
$13,632 AUD
€9,120 EUR
View
B
Retailer 19
-
$15,331 AUD
ZAR 173,981 ZAR
View
B
Retailer 20
-
$17,393 AUD
£9,620 GBP
View
Most Expensive
C
NZ Jewellers
7de86b7f-e54d-441b-bb4c-d97dde520640 · Oct 30
$20,873 AUD
$14,662 USD
View
20 more retailers have this diamond
Prices start from $9,772 AUDSave up to $11,101 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
$9,772 AUD