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Round|Natural|GIA

1.50ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2526848685

Certificate GIA 2526848685

Diamond specifications and retailer prices

From $10,338 AUD
HK$56,800 HKD
As of October 29, 2026
Save $13,347 AUD (56%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $23,685 AUD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2526848685. Listed at 24 retailers as of October 27, 2026, with prices from $10,338 to $23,685, a $13,347 spread on the same certified stone. NZ Jewellers lists it at $23,685. 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
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2526848685
Dimensions7.24 × 7.29 × 4.54 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
7.24 mm7.29 mm1.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2526848685
Side View
Table 58.0%Crown 35.5°Girdle: STK-STKPavilion 40.8°Culet: NoneDepth 62.5%

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 29
Current: $23,685 AUD|Low: $10,338 AUD|High: $23,685 AUD|Avg: $13,253 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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
October 29, 2026
Retailer 16$10,338 AUD
Retailer 3$10,558 AUD
Retailer 6$10,741 AUD
Retailer 8$10,842 AUD
Retailer 19$10,875 AUD
Retailer 12$11,426 AUD
Retailer 13$11,567 AUD
Retailer 20$11,576 AUD
Retailer 22$11,835 AUD
Retailer 15$12,595 AUD
Retailer 2$12,781 AUD
Retailer 10$12,846 AUD
Retailer 17$13,778 AUD
Retailer 21$14,020 AUD
Retailer 9$14,360 AUD
Retailer 4$14,489 AUD
Retailer 5$14,645 AUD
Retailer 7$14,803 AUD
Retailer 14$15,305 AUD
Retailer 11$16,779 AUD
Retailer 18$19,842 AUD
NZ Jewellers$23,685 AUD

29 data points across 22 retailers

24 retailers$10,338 AUD to $23,685 AUD

A
Cheapest Retailer
-
$10,338 AUD
HK$56,800 HKD
A
Retailer 2
-
$10,558 AUD
$7,425 USD
View
A
Retailer 3
-
$10,741 AUD
$7,554 USD
View
A
Retailer 4
-
$10,842 AUD
$7,625 USD
View
A
Retailer 5
-
$10,875 AUD
$7,648 USD
View
B+
Retailer 6
-
$11,426 AUD
CA$11,161 CAD
View
B+
Retailer 7
-
$11,567 AUD
$8,135 USD
View
B+
Retailer 8
-
$11,576 AUD
$8,141 USD
View
Final sale: no returns
B+
Retailer 9
-
$11,627 AUD
$8,177 USD
View
B+
Retailer 10
-
$11,835 AUD
$8,323 USD
View
B+
Retailer 11
-
$12,595 AUD
$8,858 USD
View
B+
Retailer 12
-
$12,781 AUD
£7,078 GBP
View
B+
Retailer 13
-
$12,790 AUD
$8,995 USD
View
B+
Retailer 14
-
$12,846 AUD
View
B+
Retailer 15
-
$13,778 AUD
$9,690 USD
View
B+
Retailer 16
-
$14,020 AUD
$9,860 USD
View
B+
Retailer 17
-
$14,360 AUD
$10,099 USD
View
B+
Retailer 18
-
$14,489 AUD
$10,190 USD
View
B+
Retailer 19
-
$14,645 AUD
€9,809 EUR
View
B
Retailer 20
-
$14,803 AUD
$10,411 USD
View
B+
Retailer 21
-
$15,305 AUD
$10,764 USD
View
B+
Retailer 22
-
$16,779 AUD
ZAR 190,633 ZAR
View
B
Retailer 23
-
$19,842 AUD
£10,988 GBP
View
Most Expensive
B
NZ Jewellers
b9489056-3c7b-48c3-b0bb-1bf644fa44c3 · Oct 27
$23,685 AUD
$16,657 USD
View
23 more retailers have this diamond
Prices start from $10,338 AUDSave up to $13,347 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 Round
$10,338 AUD