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Oval|Natural|GIA

1.50ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 6521686653

Certificate GIA 6521686653

Diamond specifications and retailer prices

From $9,898 AUD
As of October 31, 2026
Save $13,304 AUD (57%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $23,202 AUD at Adiamor · As of October 30, 2026
View at Adiamor

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6521686653. Listed at 22 retailers as of October 30, 2026, with prices from $9,898 to $23,202, a $13,304 spread on the same certified stone. Adiamor lists it at $23,202. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6521686653
Dimensions8.71 × 6.36 × 4.04 mm
L/W Ratio1.37
Top View
8.71 mm6.36 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6521686653
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.6%

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: Oct 31
Current: $12,636 AUD|Low: $9,873 AUD|High: $13,943 AUD|Avg: $11,789 AUD|-1.7%
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 6, 2026
Retailer 4$9,898 AUD
Retailer 13$9,910 AUD
Retailer 7$10,454 AUD
Retailer 12$10,464 AUD
Retailer 14$10,632 AUD
Retailer 10$11,316 AUD
Retailer 3$11,323 AUD
Retailer 1$12,636 AUD
Retailer 5$12,799 AUD
Retailer 2$12,930 AUD
Retailer 15$13,457 AUD
Retailer 6$13,487 AUD
Retailer 8$13,492 AUD
Retailer 11$13,492 AUD
Retailer 9$13,943 AUD

33 data points across 15 retailers

22 retailers$9,898 AUD to $23,202 AUD

A
Cheapest Retailer
-
$9,898 AUD
A
Retailer 2
-
$9,910 AUD
View
A
Retailer 3
-
$10,454 AUD
View
Final sale: no returns
A
Retailer 4
-
$10,464 AUD
View
A
Retailer 5
-
$10,632 AUD
View
Retailer 6
-
$10,894 AUD
View
Price last confirmed 25 days ago
B+
Retailer 7
-
$11,316 AUD
View
A
Retailer 8
-
$11,323 AUD
View
Retailer 9
-
$12,534 AUD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$12,636 AUD
View
Retailer 11
-
$12,799 AUD
View
Price last confirmed 14 days ago
B+
Retailer 12
-
$12,930 AUD
View
B+
Retailer 13
-
$13,457 AUD
View
B+
Retailer 14
-
$13,492 AUD
View
B+
Retailer 15
-
$13,492 AUD
View
Retailer 16
-
$13,579 AUD
View
Price last confirmed 8 days ago
Retailer 17
-
$13,787 AUD
View
Price last confirmed 8 days ago
B+
Retailer 18
-
$13,943 AUD
View
B+
Retailer 19
-
$13,947 AUD
View
B+
Retailer 20
-
$15,667 AUD
View
Retailer 21
-
$22,712 AUD
View
Price last confirmed 7 days ago
Most Expensive
B
Adiamor
D-69057583 · Oct 30
$23,202 AUD
$15,942 USD
View
21 more retailers have this diamond
Prices start from $9,898 AUDSave up to $13,304 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
$9,898 AUD