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Round|Natural|GIA

1.50ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 7553193937

Certificate GIA 7553193937

Diamond specifications and retailer prices

From $10,678 AUD
HK$58,600 HKD
As of October 30, 2026
Save $8,009 AUD (43%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $23,899 AUD at NZ Jewellers · As of September 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7553193937. Listed at 24 retailers as of October 26, 2026, with a 75% 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7553193937
Dimensions7.28 × 7.33 × 4.50 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Indented Natural, Natural
Top View
7.28 mm7.33 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7553193937
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.6%

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 30
Current: $12,831 AUD|Low: $11,369 AUD|High: $18,888 AUD|Avg: $14,613 AUD|-3.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 5$11,398 AUD
Retailer 2$12,631 AUD
Retailer 1$12,831 AUD
Retailer 11$13,117 AUD
Retailer 3$13,190 AUD
Retailer 9$13,190 AUD
Retailer 7$13,790 AUD
Retailer 6$15,614 AUD
Retailer 4$17,555 AUD
Retailer 8$18,450 AUD
Retailer 10$18,687 AUD

26 data points across 11 retailers

24 retailers$10,678 AUD to $18,687 AUD

A
Cheapest Retailer
-
$10,678 AUD
HK$58,600 HKD
A
Retailer 2
-
$11,398 AUD
₹762,515 INR
View
Retailer 3
-
$11,554 AUD
$8,116 USD
View
Price last confirmed 9 days ago
Retailer 4
-
$11,820 AUD
SGD 11,220 SGD
View
Price last confirmed 19 days ago
B+
Retailer 5
-
$12,631 AUD
SGD 11,990 SGD
View
B+
Retailer 6
-
$12,831 AUD
£7,097 GBP
View
B+
Retailer 7
-
$12,899 AUD
$9,061 USD
View
B+
Retailer 8
-
$12,905 AUD
$9,065 USD
View
B+
Retailer 9
-
$13,097 AUD
$9,200 USD
View
Retailer 10
-
$13,117 AUD
View
Price last confirmed 8 days ago
Retailer 11
-
$13,190 AUD
$9,265 USD
View
Price last confirmed 16 days ago
B+
Retailer 12
-
$13,190 AUD
$9,265 USD
View
B+
Retailer 13
-
$13,190 AUD
$9,265 USD
View
Final sale: no returns
B+
Retailer 14
-
$13,527 AUD
View
B+
Retailer 15
-
$13,790 AUD
£7,628 GBP
View
Retailer 16
-
$14,289 AUD
$10,037 USD
View
Price last confirmed 24 days ago
Retailer 17
-
$14,509 AUD
$10,192 USD
View
Price last confirmed 32 days ago
B+
Retailer 18
-
$14,614 AUD
$10,265 USD
View
B+
Retailer 19
-
$15,614 AUD
€10,446 EUR
View
Retailer 20
-
$16,488 AUD
$11,582 USD
View
Price last confirmed 33 days ago
B+
Retailer 21
-
$17,555 AUD
ZAR 199,215 ZAR
View
B
Retailer 22
-
$18,450 AUD
£10,205 GBP
View
B
Retailer 23
-
$18,687 AUD
£10,336 GBP
View
Most Expensive
NZ Jewellers
6460c838-1ee3-48c6-889d-4c2a6d138f02 · Sep 27
$23,899 AUD
$16,788 USD
View
Price last confirmed 35 days ago
23 more retailers have this diamond
Prices start from $10,678 AUDSave up to $8,009 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
$10,678 AUD