CaratHunter
Plans
Round|Natural|GIA

1.50ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 1555061951

Certificate GIA 1555061951

Diamond specifications and retailer prices

From $13,116 AUD
$9,224 USD
As of October 29, 2026
Save $11,762 AUD (47%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $24,878 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 1555061951. Listed at 28 retailers as of October 27, 2026, with prices from $13,116 to $24,878, a $11,762 spread on the same certified stone. NZ Jewellers lists it at $24,878. 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 angle33°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 1555061951
Dimensions7.42 × 7.45 × 4.44 mm
L/W Ratio1.00
Girdle conditionSlightly Thick
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
7.42 mm7.45 mm1.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555061951
Side View
Table 62.0%Crown 33°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 59.7%

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: Oct 29
Current: $15,965 AUD|Low: $14,391 AUD|High: $23,593 AUD|Avg: $17,901 AUD|-2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 8$14,391 AUD
Retailer 1$15,965 AUD
Retailer 7$16,215 AUD
Retailer 9$16,419 AUD
Retailer 2$16,557 AUD
Retailer 10$16,650 AUD
Retailer 5$17,953 AUD
Retailer 3$18,465 AUD
Retailer 6$21,812 AUD
Retailer 4$23,438 AUD

35 data points across 10 retailers

28 retailers$13,116 AUD to $24,878 AUD

B+
Cheapest Retailer
-
$13,116 AUD
$9,224 USD
B+
Retailer 2
-
$13,593 AUD
$9,560 USD
View
B+
Retailer 3
-
$13,851 AUD
$9,741 USD
View
B+
Retailer 4
-
$14,236 AUD
$10,012 USD
View
B+
Retailer 5
-
$14,265 AUD
CA$13,934 CAD
View
B+
Retailer 6
-
$14,391 AUD
$10,121 USD
View
Final sale: no returns
B+
Retailer 7
-
$14,745 AUD
$10,370 USD
View
B+
Retailer 8
-
$14,927 AUD
$10,498 USD
View
B+
Retailer 9
-
$15,924 AUD
$11,199 USD
View
B+
Retailer 10
-
$15,965 AUD
£8,841 GBP
View
B+
Retailer 11
-
$16,171 AUD
$11,373 USD
View
B+
Retailer 12
-
$16,215 AUD
View
B+
Retailer 13
-
$16,419 AUD
$11,547 USD
View
B+
Retailer 14
-
$16,557 AUD
$11,644 USD
View
B+
Retailer 15
-
$16,650 AUD
$11,710 USD
View
B
Retailer 16
-
$17,245 AUD
$12,128 USD
View
B
Retailer 17
-
$17,447 AUD
$12,270 USD
View
B
Retailer 18
-
$17,447 AUD
$12,270 USD
View
B
Retailer 19
-
$17,953 AUD
€12,025 EUR
View
B
Retailer 20
-
$18,030 AUD
$12,680 USD
View
B
Retailer 21
-
$18,184 AUD
$12,789 USD
View
B
Retailer 22
-
$18,465 AUD
£10,225 GBP
View
B
Retailer 23
-
$18,553 AUD
$13,048 USD
View
B
Retailer 24
-
$18,658 AUD
$13,122 USD
View
B
Retailer 25
-
$19,638 AUD
$13,811 USD
View
B
Retailer 26
-
$21,812 AUD
ZAR 247,825 ZAR
View
B
Retailer 27
-
$23,438 AUD
£12,979 GBP
View
Most Expensive
B
NZ Jewellers
21bb4a3a-acc9-49e9-a74b-b4811afb21b7 · Oct 27
$24,878 AUD
$17,496 USD
View
27 more retailers have this diamond
Prices start from $13,116 AUDSave up to $11,762 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
$13,116 AUD