Oval|Natural|GIA

1.50ct D SI1 Oval Natural Diamond

GD • D/SI1 • GIA 1568264174

Certificate GIA 1568264174

Diamond specifications and retailer prices

From $10,955 AUD
SGD 10,399 SGD
As of October 31, 2026
Save $334 AUD (3%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $20,799 AUD at NZ Jewellers · As of October 17, 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 D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1568264174. Listed at 20 retailers as of October 30, 2026, with a relatively tight 3% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
D
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1568264174
Dimensions9.07 × 6.47 × 3.97 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Knot
Top View
9.07 mm6.47 mm1.50 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1568264174
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 61.4%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $20,799 AUD|Low: $9,895 AUD|High: $20,799 AUD|Avg: $12,969 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
October 21, 2026
Retailer 10$9,901 AUD
Retailer 14$10,670 AUD
Retailer 7$10,955 AUD
Retailer 2$11,232 AUD
Retailer 5$11,478 AUD
Retailer 8$11,478 AUD
Retailer 12$11,700 AUD
Retailer 13$11,727 AUD
Retailer 9$11,898 AUD
Retailer 11$12,435 AUD
Retailer 3$12,626 AUD
Retailer 15$13,487 AUD
Retailer 6$14,348 AUD
Retailer 17$15,094 AUD
Retailer 4$16,932 AUD
Retailer 16$17,423 AUD
NZ Jewellers$20,799 AUD

24 data points across 17 retailers

20 retailers$10,955 AUD to $11,289 AUD

Retailer 1
-
$9,275 AUD
HK$50,900 HKD
Price last confirmed 12 days ago
Retailer 2
-
$9,901 AUD
₹662,401 INR
View
Price last confirmed 12 days ago
Retailer 3
-
$10,032 AUD
$7,047 USD
View
Price last confirmed 17 days ago
Retailer 4
-
$10,670 AUD
$7,495 USD
View
Price last confirmed 13 days ago
Retailer 5
-
$10,711 AUD
$7,524 USD
View
Price last confirmed 13 days ago
B+
Retailer 6
-
$10,955 AUD
SGD 10,399 SGD
View
Retailer 7
-
$11,232 AUD
$7,890 USD
View
Price last confirmed 11 days ago
B+
Retailer 8
-
$11,289 AUD
$7,930 USD
View
Retailer 9
-
$11,478 AUD
$8,063 USD
View
Price last confirmed 16 days ago
Retailer 10
-
$11,700 AUD
£6,471 GBP
View
Price last confirmed 12 days ago
Retailer 11
-
$11,727 AUD
£6,486 GBP
View
Price last confirmed 12 days ago
Retailer 12
-
$11,898 AUD
View
Price last confirmed 28 days ago
Retailer 13
-
$12,435 AUD
$8,735 USD
View
Price last confirmed 12 days ago
Retailer 14
-
$12,626 AUD
$8,869 USD
View
Price last confirmed 15 days ago
Retailer 15
-
$12,705 AUD
$8,925 USD
View
Price last confirmed 14 days ago
Retailer 16
-
$14,348 AUD
$10,079 USD
View
Price last confirmed 13 days ago
Retailer 17
-
$15,094 AUD
ZAR 171,285 ZAR
View
Price last confirmed 15 days ago
Retailer 18
-
$16,932 AUD
£9,365 GBP
View
Price last confirmed 13 days ago
Retailer 19
-
$17,423 AUD
£9,637 GBP
View
Price last confirmed 13 days ago
Most Expensive
NZ Jewellers
654fa8d7-6a61-44d3-ad7d-18ee1c82bdf4 · Oct 17
$20,799 AUD
$14,610 USD
View
Price last confirmed 15 days ago
19 more retailers have this diamond
Prices start from $10,955 AUDSave up to $334 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
$10,955 AUD