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Oval|Natural|GIA

1.50ct H SI1 Oval Natural Diamond

VG • H/SI1 • GIA 1557153385

Certificate GIA 1557153385

Diamond specifications and retailer prices

From $7,088 AUD
As of November 1, 2026
Save $6,798 AUD (49%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $15,807 AUD at NZ Jewellers · As of October 9, 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 1557153385. Listed at 23 retailers as of November 1, 2026, with a 96% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.84°
Pavilion angle40.52°
OriginNatural
Grading LabGIA
CertificateGIA 1557153385
Dimensions8.77 × 6.34 × 4.09 mm
L/W Ratio1.38
Culet sizeNone
Top View
8.77 mm6.34 mm1.50 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1557153385
Side View
Table 60.0%Crown 41.84°Girdle: MED-VTKPavilion 40.52°Culet: NoneDepth 64.5%

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 1
Current: $15,807 AUD|Low: $7,088 AUD|High: $15,807 AUD|Avg: $9,960 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
November 6, 2026
Retailer 15$7,088 AUD
Retailer 9$7,471 AUD
Retailer 5$7,904 AUD
Retailer 2$8,079 AUD
Retailer 4$8,562 AUD
Retailer 6$8,562 AUD
Retailer 3$8,716 AUD
Retailer 10$8,858 AUD
Retailer 12$8,977 AUD
Retailer 7$9,342 AUD
Retailer 14$9,731 AUD
Retailer 11$11,531 AUD
Retailer 8$13,697 AUD
Retailer 13$13,886 AUD
NZ Jewellers$15,807 AUD

29 data points across 15 retailers

23 retailers$7,088 AUD to $13,886 AUD

A
Cheapest Retailer
-
$7,088 AUD
A
Retailer 2
-
$7,249 AUD
View
B+
Retailer 3
-
$7,468 AUD
View
A
Retailer 4
-
$7,471 AUD
View
B+
Retailer 5
-
$7,564 AUD
View
B+
Retailer 6
-
$7,904 AUD
View
Final sale: no returns
B+
Retailer 7
-
$7,990 AUD
View
B+
Retailer 8
-
$8,079 AUD
View
B+
Retailer 9
-
$8,449 AUD
View
Retailer 10
-
$8,562 AUD
View
Price last confirmed 25 days ago
Retailer 11
-
$8,562 AUD
View
Price last confirmed 38 days ago
Retailer 12
-
$8,562 AUD
View
Price last confirmed 27 days ago
B+
Retailer 13
-
$8,716 AUD
View
B+
Retailer 14
-
$8,858 AUD
View
B+
Retailer 15
-
$8,977 AUD
View
B+
Retailer 16
-
$8,986 AUD
View
Retailer 17
-
$9,342 AUD
View
Price last confirmed 28 days ago
B+
Retailer 18
-
$9,731 AUD
View
Retailer 19
-
$9,879 AUD
View
Price last confirmed 28 days ago
B
Retailer 20
-
$11,531 AUD
View
B
Retailer 21
-
$13,697 AUD
View
B
Retailer 22
-
$13,886 AUD
View
Most Expensive
NZ Jewellers
80561aa5-a616-4ac9-85c2-34117f5856cb · Oct 9
$15,807 AUD
$10,861 USD
View
Price last confirmed 28 days ago
22 more retailers have this diamond
Prices start from $7,088 AUDSave up to $6,798 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
$7,088 AUD