Round|Natural|GIA

1.40ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 5556327803

Certificate GIA 5556327803

Diamond specifications and retailer prices

From €2,931 EUR
As of November 7, 2026
Save €2,259 EUR (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €5,437 EUR at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

About this 1.4ct natural round diamond

This 1.4ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5556327803. Listed at 13 retailers as of November 7, 2026, with a 77% 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

1.40
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5556327803
Dimensions7.07 × 7.12 × 4.46 mm
L/W Ratio1.01
Star length50%
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
7.07 mm7.12 mm1.40 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5556327803
Side View
Table 57.0%Crown 36°GirdlePavilion 40.6°Culet: NoneDepth 62.8%

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: Nov 7
Current: €3,630 EUR|Low: €2,931 EUR|High: €5,429 EUR|Avg: €3,815 EUR|+7.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 2€2,931 EUR
Retailer 5€3,005 EUR
Retailer 6€3,209 EUR
Retailer 7€3,617 EUR
Retailer 1€3,630 EUR
Retailer 8€3,808 EUR
Retailer 3€3,987 EUR
Retailer 4€5,190 EUR

45 data points across 8 retailers

13 retailers€2,931 EUR to €5,190 EUR

B+
Cheapest Retailer
-
€2,931 EUR
B+
Retailer 2
-
€3,005 EUR
View
Retailer 3
-
€3,120 EUR
View
Price last confirmed 30 days ago
Retailer 4
-
€3,120 EUR
View
Price last confirmed 30 days ago
B+
Retailer 5
-
€3,209 EUR
View
Retailer 6
-
€3,331 EUR
View
Price last confirmed 39 days ago
Retailer 7
-
€3,601 EUR
View
Price last confirmed 36 days ago
B+
Retailer 8
-
€3,617 EUR
View
B+
Retailer 9
-
€3,630 EUR
View
B
Retailer 10
-
€3,808 EUR
View
B
Retailer 11
-
€3,987 EUR
View
B
Retailer 12
-
€5,190 EUR
View
Most Expensive
NZ Jewellers
f26d75f1-4073-4103-856b-0821ff293602 · Oct 3
€5,437 EUR
$6,070 USD
View
Price last confirmed 35 days ago
12 more retailers have this diamond
Prices start from €2,931 EURSave up to €2,259 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.

B+
1.40ct Round
€2,931 EUR