Round|Natural|GIA

1.30ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 5556390031

Certificate GIA 5556390031

Diamond specifications and retailer prices

From €3,067 EUR
$3,413 USD
As of October 28, 2026
Save €3,879 EUR (56%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: €7,217 EUR 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
Colour
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: €6,946 EUR|Low: €2,724 EUR|High: €6,946 EUR|Avg: €4,090 EUR
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€3,067 EUR
Retailer 8€3,088 EUR
Retailer 6€3,115 EUR
Retailer 16€3,145 EUR
Retailer 5€3,179 EUR
Retailer 7€3,333 EUR
Retailer 19€3,446 EUR
Retailer 3€3,612 EUR
Retailer 12€3,612 EUR
Retailer 18€3,612 EUR
Retailer 11€3,669 EUR
Retailer 10€3,858 EUR
Retailer 21€3,932 EUR
Retailer 2€4,029 EUR
Retailer 4€4,168 EUR
Retailer 14€4,176 EUR
Retailer 13€4,397 EUR
Retailer 15€4,855 EUR
Retailer 20€5,766 EUR
Retailer 17€6,384 EUR
NZ Jewellers€6,946 EUR

36 data points across 21 retailers

25 retailers€3,067 EUR to €6,946 EUR

A
Cheapest Retailer
-
€3,067 EUR
$3,413 USD
A
Retailer 2
-
€3,088 EUR
$3,437 USD
View
A
Retailer 3
-
€3,115 EUR
$3,467 USD
View
A
Retailer 4
-
€3,145 EUR
$3,500 USD
View
A
Retailer 5
-
€3,179 EUR
$3,538 USD
View
A
Retailer 6
-
€3,304 EUR
A$5,658 AUD
View
A
Retailer 7
-
€3,333 EUR
$3,710 USD
View
Final sale: no returns
A
Retailer 8
-
€3,446 EUR
$3,835 USD
View
A
Retailer 9
-
€3,612 EUR
$4,020 USD
View
A
Retailer 10
-
€3,612 EUR
$4,020 USD
View
A
Retailer 11
-
€3,612 EUR
$4,020 USD
View
A
Retailer 12
-
€3,669 EUR
$4,084 USD
View
A
Retailer 13
-
€3,753 EUR
$4,177 USD
View
Price last confirmed 48 days ago
A
Retailer 14
-
€3,858 EUR
$4,294 USD
View
A
Retailer 15
-
€3,932 EUR
$4,376 USD
View
A
Retailer 16
-
€4,029 EUR
£3,531 GBP
View
A
Retailer 17
-
€4,168 EUR
$4,639 USD
View
A
Retailer 18
-
€4,176 EUR
A$7,151 AUD
View
Price last confirmed 19 days ago
A
Retailer 19
-
€4,330 EUR
$4,819 USD
View
Price last confirmed 48 days ago
A
Retailer 20
-
€4,397 EUR
View
B+
Retailer 21
-
€4,855 EUR
ZAR 87,297 ZAR
View
B+
Retailer 22
-
€5,766 EUR
$6,418 USD
View
B+
Retailer 23
-
€6,384 EUR
£5,595 GBP
View
Price last confirmed 11 days ago
B
Retailer 24
-
€6,946 EUR
$7,731 USD
View
Most Expensive
B
NZ Jewellers
e517ba02-28b9-4889-ae77-714b4f2529f1 · Sep 10
€7,217 EUR
$8,032 USD
View
Price last confirmed 48 days ago
24 more retailers have this diamond
Prices start from €3,067 EURSave up to €3,879 EUR

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
€3,067 EUR