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Oval|Natural|GIA

1.50ct H SI2 Oval Natural Diamond

EX • H/SI2 • GIA 6512887515

Certificate GIA 6512887515

Diamond specifications and retailer prices

From $8,745 AUD
$6,143 USD
As of October 31, 2026
Save $10,947 AUD (56%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $19,693 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6512887515. Listed at 25 retailers as of October 30, 2026, with prices from $8,745 to $19,693, a $10,947 spread on the same certified stone. NZ Jewellers lists it at $19,693. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6512887515
Dimensions9.21 × 6.44 × 3.96 mm
L/W Ratio1.43
Top View
9.21 mm6.44 mm1.50 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6512887515
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 61.4%

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: Oct 31
Current: $19,693 AUD|Low: $8,745 AUD|High: $19,693 AUD|Avg: $12,646 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 9$8,745 AUD
Retailer 6$9,406 AUD
Retailer 7$10,831 AUD
Retailer 8$11,024 AUD
Retailer 2$11,112 AUD
Retailer 4$11,441 AUD
Retailer 3$12,866 AUD
Retailer 5$16,498 AUD
NZ Jewellers$19,693 AUD

43 data points across 9 retailers

25 retailers$8,745 AUD to $19,693 AUD

B+
Cheapest Retailer
-
$8,745 AUD
$6,143 USD
B+
Retailer 2
-
$9,130 AUD
$6,413 USD
View
B+
Retailer 3
-
$9,302 AUD
$6,534 USD
View
B+
Retailer 4
-
$9,406 AUD
$6,607 USD
View
Final sale: no returns
B+
Retailer 5
-
$9,444 AUD
$6,634 USD
View
B+
Retailer 6
-
$9,794 AUD
CA$9,555 CAD
View
B+
Retailer 7
-
$9,846 AUD
$6,916 USD
View
B+
Retailer 8
-
$9,928 AUD
$6,974 USD
View
B
Retailer 9
-
$10,486 AUD
$7,366 USD
View
B+
Retailer 10
-
$10,667 AUD
$7,493 USD
View
B+
Retailer 11
-
$10,831 AUD
$7,608 USD
View
B+
Retailer 12
-
$10,882 AUD
$7,644 USD
View
B
Retailer 13
-
$11,024 AUD
$7,744 USD
View
B+
Retailer 14
-
$11,112 AUD
£6,146 GBP
View
B
Retailer 15
-
$11,271 AUD
$7,917 USD
View
B+
Retailer 16
-
$11,441 AUD
£6,328 GBP
View
B
Retailer 17
-
$11,773 AUD
$8,270 USD
View
B
Retailer 18
-
$11,773 AUD
$8,270 USD
View
B
Retailer 19
-
$11,885 AUD
$8,348 USD
View
B
Retailer 20
-
$12,158 AUD
$8,540 USD
View
B
Retailer 21
-
$12,308 AUD
$8,646 USD
View
B
Retailer 22
-
$12,866 AUD
€8,607 EUR
View
B
Retailer 23
-
$12,980 AUD
$9,118 USD
View
B
Retailer 24
-
$16,498 AUD
£9,125 GBP
View
Most Expensive
B
NZ Jewellers
ae189e5f-e719-447a-814f-c49b131cc493 · Oct 30
$19,693 AUD
$13,833 USD
View
24 more retailers have this diamond
Prices start from $8,745 AUDSave up to $10,947 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
$8,745 AUD