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Oval|Natural|GIA

1.50ct H SI2 Oval Natural Diamond

EX • H/SI2 • GIA 1558891252

Certificate GIA 1558891252

Diamond specifications and retailer prices

From $5,576 AUD
HK$30,600 HKD
As of October 31, 2026
Save $7,215 AUD (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $12,791 AUD at Queensmith · As of October 25, 2026
View at Queensmith

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 1558891252. Listed at 20 retailers as of October 25, 2026, with prices from $5,576 to $12,791, a $7,215 spread on the same certified stone. Queensmith lists it at $12,791. 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
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1558891252
Dimensions8.79 × 6.42 × 4.08 mm
L/W Ratio1.37
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
8.79 mm6.42 mm1.50 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1558891252
Side View
Table 65.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 63.5%

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: Oct 31
Current: $12,791 AUD|Low: $5,540 AUD|High: $12,819 AUD|Avg: $8,352 AUD|+2.2%
Queensmith
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
Retailer 18
November 1, 2026
Retailer 13$5,576 AUD
Retailer 12$5,945 AUD
Retailer 10$6,459 AUD
Retailer 6$6,583 AUD
Retailer 9$6,873 AUD
Retailer 8$7,099 AUD
Retailer 2$7,215 AUD
Retailer 11$7,433 AUD
Retailer 3$7,447 AUD
Retailer 17$7,447 AUD
Retailer 18$7,447 AUD
Retailer 7$7,517 AUD
Retailer 4$7,664 AUD
Retailer 14$8,428 AUD
Retailer 15$8,593 AUD
Retailer 5$11,877 AUD
Retailer 16$12,455 AUD
Queensmith$12,791 AUD

24 data points across 18 retailers

20 retailers$5,576 AUD to $12,791 AUD

A
Cheapest Retailer
-
$5,576 AUD
HK$30,600 HKD
A
Retailer 2
-
$5,945 AUD
₹397,690 INR
View
A
Retailer 3
-
$6,459 AUD
SGD 6,131 SGD
View
A
Retailer 4
-
$6,583 AUD
$4,624 USD
View
A
Retailer 5
-
$6,715 AUD
$4,717 USD
View
A
Retailer 6
-
$6,873 AUD
$4,828 USD
View
Final sale: no returns
A
Retailer 7
-
$7,077 AUD
View
A
Retailer 8
-
$7,099 AUD
SGD 6,739 SGD
View
A
Retailer 9
-
$7,215 AUD
£3,990 GBP
View
A
Retailer 10
-
$7,433 AUD
£4,111 GBP
View
A
Retailer 11
-
$7,447 AUD
$5,231 USD
View
A
Retailer 12
-
$7,447 AUD
$5,231 USD
View
A
Retailer 13
-
$7,447 AUD
$5,231 USD
View
B+
Retailer 14
-
$7,517 AUD
$5,280 USD
View
B+
Retailer 15
-
$7,664 AUD
$5,384 USD
View
B+
Retailer 16
-
$8,428 AUD
€5,638 EUR
View
B+
Retailer 17
-
$8,593 AUD
$6,036 USD
View
B
Retailer 18
-
$11,877 AUD
£6,569 GBP
View
B
Retailer 19
-
$12,455 AUD
$8,749 USD
View
Most Expensive
B
Queensmith
1558891252 · Oct 25
$12,791 AUD
£7,075 GBP
View
19 more retailers have this diamond
Prices start from $5,576 AUDSave up to $7,215 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
$5,576 AUD