Round|Natural|GIA

1.30ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6551678903

Certificate GIA 6551678903

Diamond specifications and retailer prices

From €2,978 EUR
HK$25,900 HKD
As of October 29, 2026
Save €3,626 EUR (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €7,321 EUR at NZ Jewellers · As of September 25, 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 6551678903. Listed at 17 retailers as of October 29, 2026, with a 122% 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
FluorescenceMedium
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6551678903
Dimensions6.98 × 6.93 × 4.33 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.98 mm6.93 mm1.30 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6551678903
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.2%

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 29
Current: €3,431 EUR|Low: €2,978 EUR|High: €6,711 EUR|Avg: €4,141 EUR|-0.5%
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
October 29, 2026
Retailer 15€2,978 EUR
Retailer 13€3,191 EUR
Retailer 14€3,324 EUR
Retailer 1€3,431 EUR
Retailer 16€3,448 EUR
Retailer 3€3,552 EUR
Retailer 4€3,566 EUR
Retailer 6€3,627 EUR
Retailer 10€3,813 EUR
Retailer 2€3,955 EUR
Retailer 8€4,197 EUR
Retailer 7€4,529 EUR
Retailer 11€5,022 EUR
Retailer 5€5,264 EUR
Retailer 12€6,132 EUR
Retailer 9€6,604 EUR

31 data points across 16 retailers

17 retailers€2,978 EUR to €6,604 EUR

A
Cheapest Retailer
-
€2,978 EUR
HK$25,900 HKD
A
Retailer 2
-
€3,191 EUR
$3,552 USD
View
A
Retailer 3
-
€3,324 EUR
$3,701 USD
View
A
Retailer 4
-
€3,431 EUR
View
A
Retailer 5
-
€3,448 EUR
$3,839 USD
View
Final sale: no returns
A
Retailer 6
-
€3,552 EUR
$3,955 USD
View
A
Retailer 7
-
€3,566 EUR
$3,970 USD
View
A
Retailer 8
-
€3,627 EUR
$4,038 USD
View
A
Retailer 9
-
€3,813 EUR
£3,342 GBP
View
A
Retailer 10
-
€3,934 EUR
A$6,738 AUD
View
A
Retailer 11
-
€3,955 EUR
$4,403 USD
View
A
Retailer 12
-
€4,197 EUR
A$7,188 AUD
View
Price last confirmed 19 days ago
B+
Retailer 13
-
€5,022 EUR
ZAR 90,324 ZAR
View
B+
Retailer 14
-
€5,264 EUR
$5,860 USD
View
B+
Retailer 15
-
€6,132 EUR
$6,827 USD
View
B+
Retailer 16
-
€6,604 EUR
£5,789 GBP
View
Most Expensive
B
NZ Jewellers
9a869dfd-3c5c-419e-899d-e93f71b54a19 · Sep 25
€7,321 EUR
$8,151 USD
View
Price last confirmed 34 days ago
16 more retailers have this diamond
Prices start from €2,978 EURSave up to €3,626 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
€2,978 EUR