Round|Natural|GIA

1.51ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2396117046

Certificate GIA 2396117046

Diamond specifications and retailer prices

From $13,900 AUD
$9,765 USD
As of October 29, 2026
Save $5,071 AUD (27%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $26,878 AUD at NZ Jewellers · As of September 27, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct 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 2396117046. Listed at 20 retailers as of October 29, 2026, with a 36% 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

1.51
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2396117046
Dimensions7.32 × 7.27 × 4.54 mm
L/W Ratio1.01
Top View
7.32 mm7.27 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2396117046
Side View
Table 59.0%CrownGirdle: Sli. ThickPavilionCulet: NoneDepth 62.5%

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: $18,971 AUD|Low: $13,767 AUD|High: $25,491 AUD|Avg: $17,707 AUD|+3.8%
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
October 29, 2026
Retailer 9$13,900 AUD
Retailer 16$14,782 AUD
Retailer 7$14,963 AUD
Retailer 11$14,979 AUD
Retailer 14$15,630 AUD
Retailer 5$15,906 AUD
Retailer 13$16,417 AUD
Retailer 6$17,208 AUD
Retailer 2$17,707 AUD
Retailer 8$17,821 AUD
Retailer 12$17,821 AUD
Retailer 10$18,038 AUD
Retailer 17$18,405 AUD
Retailer 1$18,971 AUD
Retailer 4$21,214 AUD
Retailer 3$23,252 AUD
Retailer 15$25,422 AUD

41 data points across 17 retailers

20 retailers$13,900 AUD to $18,971 AUD

B+
Cheapest Retailer
-
$13,900 AUD
$9,765 USD
B+
Retailer 2
-
$14,587 AUD
CA$14,234 CAD
View
B+
Retailer 3
-
$14,963 AUD
$10,512 USD
View
Price last confirmed 24 days ago
B+
Retailer 4
-
$15,630 AUD
$10,981 USD
View
B+
Retailer 5
-
$16,127 AUD
$11,330 USD
View
Price last confirmed 22 days ago
B+
Retailer 6
-
$16,417 AUD
$11,534 USD
View
B
Retailer 7
-
$17,208 AUD
$12,090 USD
View
Price last confirmed 23 days ago
B
Retailer 8
-
$17,471 AUD
$12,274 USD
View
Price last confirmed 22 days ago
B
Retailer 9
-
$17,707 AUD
View
Price last confirmed 26 days ago
B
Retailer 10
-
$17,740 AUD
$12,463 USD
View
Price last confirmed 30 days ago
B
Retailer 11
-
$17,821 AUD
$12,520 USD
View
B
Retailer 12
-
$17,821 AUD
$12,520 USD
View
B
Retailer 13
-
$18,038 AUD
£9,978 GBP
View
B
Retailer 14
-
$18,405 AUD
$12,930 USD
View
B
Retailer 15
-
$18,971 AUD
€12,693 EUR
View
B
Retailer 16
-
$20,158 AUD
$14,162 USD
View
Price last confirmed 30 days ago
B
Retailer 17
-
$21,214 AUD
$14,904 USD
View
Price last confirmed 22 days ago
B
Retailer 18
-
$23,252 AUD
ZAR 263,906 ZAR
View
Price last confirmed 29 days ago
B
Retailer 19
-
$25,422 AUD
£14,063 GBP
View
Price last confirmed 22 days ago
Most Expensive
B
NZ Jewellers
ef9fc0c7-93ba-49d9-bdfb-153290d5fe4c · Sep 27
$26,878 AUD
$18,883 USD
View
Price last confirmed 33 days ago
19 more retailers have this diamond
Prices start from $13,900 AUDSave up to $5,071 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+
1.51ct Round
$13,900 AUD