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Round|Natural|GIA

1.50ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1525968947

Certificate GIA 1525968947

Diamond specifications and retailer prices

From $8,502 AUD
As of November 5, 2026
Save $7,156 AUD (46%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $18,147 AUD at NZ Jewellers · As of September 28, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1525968947. Listed at 25 retailers as of November 4, 2026, with a 84% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1525968947
Dimensions7.27 × 7.34 × 4.54 mm
L/W Ratio1.01
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
7.27 mm7.34 mm1.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1525968947
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $8,911 AUD|Low: $8,502 AUD|High: $15,867 AUD|Avg: $10,789 AUD
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
Retailer 16
Retailer 17
November 6, 2026
Retailer 3$8,502 AUD
Retailer 6$8,901 AUD
Retailer 1$8,911 AUD
Retailer 4$9,023 AUD
Retailer 7$9,421 AUD
Retailer 16$9,453 AUD
Retailer 5$10,034 AUD
Retailer 9$10,345 AUD
Retailer 2$10,397 AUD
Retailer 11$10,445 AUD
Retailer 15$10,862 AUD
Retailer 17$11,355 AUD
Retailer 8$11,451 AUD
Retailer 12$12,009 AUD
Retailer 10$12,416 AUD
Retailer 13$13,745 AUD
Retailer 14$15,659 AUD

29 data points across 17 retailers

25 retailers$8,502 AUD to $15,659 AUD

B+
Cheapest Retailer
-
$8,502 AUD
B+
Retailer 2
-
$8,748 AUD
View
B+
Retailer 3
-
$8,901 AUD
View
B+
Retailer 4
-
$8,911 AUD
View
B+
Retailer 5
-
$9,023 AUD
View
B+
Retailer 6
-
$9,421 AUD
View
Final sale: no returns
B+
Retailer 7
-
$9,453 AUD
View
B+
Retailer 8
-
$10,034 AUD
View
Retailer 9
-
$10,345 AUD
View
Price last confirmed 22 days ago
B+
Retailer 10
-
$10,397 AUD
View
B+
Retailer 11
-
$10,445 AUD
View
Retailer 12
-
$10,668 AUD
View
Price last confirmed 31 days ago
Retailer 13
-
$10,850 AUD
View
Price last confirmed 29 days ago
Retailer 14
-
$10,862 AUD
View
Price last confirmed 15 days ago
Retailer 15
-
$11,017 AUD
View
Price last confirmed 38 days ago
Retailer 16
-
$11,161 AUD
View
Price last confirmed 60 days ago
B+
Retailer 17
-
$11,355 AUD
View
B+
Retailer 18
-
$11,451 AUD
View
B+
Retailer 19
-
$12,009 AUD
View
B+
Retailer 20
-
$12,416 AUD
View
Retailer 21
-
$12,519 AUD
View
Price last confirmed 38 days ago
Retailer 22
-
$12,879 AUD
View
Price last confirmed 60 days ago
B
Retailer 23
-
$13,745 AUD
View
B
Retailer 24
-
$15,659 AUD
View
Most Expensive
NZ Jewellers
2977511e-c96a-4267-82e5-4abcd9b343e3 · Sep 28
$18,147 AUD
$12,469 USD
View
Price last confirmed 39 days ago
24 more retailers have this diamond
Prices start from $8,502 AUDSave up to $7,156 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 Round
$8,502 AUD