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Oval|Natural|GIA

1.50ct H SI1 Oval Natural Diamond

ID • H/SI1 • GIA 6562135643

Certificate GIA 6562135643

Diamond specifications and retailer prices

From $7,267 AUD
As of November 4, 2026
Save $8,140 AUD (53%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $18,540 AUD at NZ Jewellers · As of September 19, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6562135643. Listed at 19 retailers as of November 4, 2026, with a 112% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.50
Carat
H
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6562135643
Dimensions8.79 × 6.28 × 4.01 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Cavity, Feather, Indented Natural, Natural
Top View
8.79 mm6.28 mm1.50 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6562135643
Side View
Table 62.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 63.8%

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 4
Current: $15,407 AUD|Low: $7,267 AUD|High: $15,634 AUD|Avg: $10,423 AUD|-1.5%
Retailer 1
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
November 4, 2026
Retailer 8$7,267 AUD
Retailer 2$8,529 AUD
Retailer 5$9,271 AUD
Retailer 7$9,271 AUD
Retailer 6$9,307 AUD
Retailer 14$9,929 AUD
Retailer 4$9,969 AUD
Retailer 10$10,198 AUD
Retailer 11$10,444 AUD
Retailer 9$10,451 AUD
Retailer 15$10,687 AUD
Retailer 3$11,905 AUD
Retailer 12$12,109 AUD
Retailer 13$13,620 AUD
Retailer 1$15,407 AUD

30 data points across 15 retailers

19 retailers$7,267 AUD to $15,407 AUD

A
Cheapest Retailer
-
$7,267 AUD
B+
Retailer 2
-
$8,529 AUD
View
B+
Retailer 3
-
$9,271 AUD
View
Final sale: no returns
Retailer 4
-
$9,271 AUD
View
Price last confirmed 29 days ago
B+
Retailer 5
-
$9,307 AUD
View
B+
Retailer 6
-
$9,876 AUD
View
B
Retailer 7
-
$9,929 AUD
View
Retailer 8
-
$9,969 AUD
View
Price last confirmed 22 days ago
B+
Retailer 9
-
$10,198 AUD
View
B+
Retailer 10
-
$10,444 AUD
View
B+
Retailer 11
-
$10,451 AUD
View
Retailer 12
-
$10,687 AUD
View
Price last confirmed 15 days ago
B+
Retailer 13
-
$11,290 AUD
View
Retailer 14
-
$11,588 AUD
View
Price last confirmed 48 days ago
B+
Retailer 15
-
$11,905 AUD
View
B
Retailer 16
-
$12,109 AUD
View
B
Retailer 17
-
$13,620 AUD
View
B
Retailer 18
-
$15,407 AUD
View
Most Expensive
NZ Jewellers
524ce455-1024-4470-8bbe-8acdad1d86f0 · Sep 19
$18,540 AUD
$12,739 USD
View
Price last confirmed 47 days ago
18 more retailers have this diamond
Prices start from $7,267 AUDSave up to $8,140 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
1.50ct Oval
$7,267 AUD