Round|Natural|GIA

1.30ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 5556390031

Certificate GIA 5556390031

Diamond specifications and retailer prices

From $4,777 CAD
$3,413 USD
As of October 28, 2026
Save $6,043 CAD (56%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $11,242 CAD at NZ Jewellers · As of September 10, 2026
View at NZ Jewellers

About this 1.3ct natural round diamond

This 1.3ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5556390031. Listed at 25 retailers as of October 27, 2026, with a 127% 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

1.30
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle31.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 5556390031
Dimensions7.03 × 7.07 × 4.32 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
7.03 mm7.07 mm1.30 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 5556390031
Side View
Table 59.0%Crown 31.5°Girdle: THN-STKPavilion 41.8°Culet: NoneDepth 61.2%

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 28
Current: $10,820 CAD|Low: $4,244 CAD|High: $10,820 CAD|Avg: $6,371 CAD
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
October 28, 2026
Retailer 9$4,777 CAD
Retailer 8$4,810 CAD
Retailer 6$4,852 CAD
Retailer 16$4,899 CAD
Retailer 5$4,952 CAD
Retailer 7$5,193 CAD
Retailer 19$5,367 CAD
Retailer 3$5,626 CAD
Retailer 12$5,626 CAD
Retailer 18$5,626 CAD
Retailer 11$5,716 CAD
Retailer 10$6,010 CAD
Retailer 21$6,125 CAD
Retailer 2$6,276 CAD
Retailer 4$6,493 CAD
Retailer 14$6,505 CAD
Retailer 13$6,850 CAD
Retailer 15$7,563 CAD
Retailer 20$8,982 CAD
Retailer 17$9,945 CAD
NZ Jewellers$10,820 CAD

36 data points across 21 retailers

25 retailers$4,777 CAD to $10,820 CAD

A
Cheapest Retailer
-
$4,777 CAD
$3,413 USD
A
Retailer 2
-
$4,810 CAD
$3,437 USD
View
A
Retailer 3
-
$4,852 CAD
$3,467 USD
View
A
Retailer 4
-
$4,899 CAD
$3,500 USD
View
A
Retailer 5
-
$4,952 CAD
$3,538 USD
View
A
Retailer 6
-
$5,147 CAD
A$5,658 AUD
View
A
Retailer 7
-
$5,193 CAD
$3,710 USD
View
Final sale: no returns
A
Retailer 8
-
$5,367 CAD
$3,835 USD
View
A
Retailer 9
-
$5,626 CAD
$4,020 USD
View
A
Retailer 10
-
$5,626 CAD
$4,020 USD
View
A
Retailer 11
-
$5,626 CAD
$4,020 USD
View
A
Retailer 12
-
$5,716 CAD
$4,084 USD
View
A
Retailer 13
-
$5,846 CAD
$4,177 USD
View
Price last confirmed 48 days ago
A
Retailer 14
-
$6,010 CAD
$4,294 USD
View
A
Retailer 15
-
$6,125 CAD
$4,376 USD
View
A
Retailer 16
-
$6,276 CAD
£3,531 GBP
View
A
Retailer 17
-
$6,493 CAD
$4,639 USD
View
A
Retailer 18
-
$6,505 CAD
A$7,151 AUD
View
Price last confirmed 20 days ago
A
Retailer 19
-
$6,745 CAD
$4,819 USD
View
Price last confirmed 49 days ago
A
Retailer 20
-
$6,850 CAD
€4,661 EUR
View
B+
Retailer 21
-
$7,563 CAD
ZAR 87,297 ZAR
View
B+
Retailer 22
-
$8,982 CAD
$6,418 USD
View
B+
Retailer 23
-
$9,945 CAD
£5,595 GBP
View
Price last confirmed 12 days ago
B
Retailer 24
-
$10,820 CAD
$7,731 USD
View
Most Expensive
B
NZ Jewellers
e517ba02-28b9-4889-ae77-714b4f2529f1 · Sep 10
$11,242 CAD
$8,032 USD
View
Price last confirmed 49 days ago
24 more retailers have this diamond
Prices start from $4,777 CADSave up to $6,043 CAD

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
1.30ct Round
$4,777 CAD