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Round|Natural|GIA

1.01ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 2556587039

Certificate GIA 2556587039

Diamond specifications and retailer prices

From €1,506 EUR
HK$13,200 HKD
As of November 1, 2026
Save €1,972 EUR (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €4,607 EUR at NZ Jewellers · As of September 21, 2026
View at NZ Jewellers

About this 1.01ct natural round diamond

This 1.01ct natural round sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556587039. Listed at 16 retailers as of November 1, 2026, with a 131% 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

1.01
Carat
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2556587039
Dimensions6.35 × 6.38 × 4.01 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Top View
6.35 mm6.38 mm1.01 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556587039
Side View
Table 55.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €1,805 EUR|Low: €1,495 EUR|High: €3,860 EUR|Avg: €2,148 EUR|-5.5%
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
November 2, 2026
Retailer 10€1,506 EUR
Retailer 5€1,612 EUR
Retailer 3€1,624 EUR
Retailer 12€1,660 EUR
Retailer 14€1,684 EUR
Retailer 1€1,805 EUR
Retailer 2€2,086 EUR
Retailer 13€2,086 EUR
Retailer 7€2,148 EUR
Retailer 4€2,158 EUR
Retailer 6€2,160 EUR
Retailer 11€2,425 EUR
Retailer 8€2,530 EUR
Retailer 9€3,478 EUR

28 data points across 14 retailers

16 retailers€1,506 EUR to €3,478 EUR

A
Cheapest Retailer
-
€1,506 EUR
HK$13,200 HKD
A
Retailer 2
-
€1,624 EUR
$1,822 USD
View
A
Retailer 3
-
€1,660 EUR
$1,862 USD
View
Final sale: no returns
A
Retailer 4
-
€1,684 EUR
$1,889 USD
View
A
Retailer 5
-
€1,805 EUR
£1,594 GBP
View
A
Retailer 6
-
€2,074 EUR
A$3,578 AUD
View
A
Retailer 7
-
€2,086 EUR
$2,340 USD
View
A
Retailer 8
-
€2,086 EUR
$2,340 USD
View
A
Retailer 9
-
€2,148 EUR
£1,897 GBP
View
A
Retailer 10
-
€2,158 EUR
$2,420 USD
View
Retailer 11
-
€2,159 EUR
$2,422 USD
View
Price last confirmed 40 days ago
A
Retailer 12
-
€2,425 EUR
$2,720 USD
View
Retailer 13
-
€2,492 EUR
$2,795 USD
View
Price last confirmed 41 days ago
B+
Retailer 14
-
€2,530 EUR
View
B+
Retailer 15
-
€3,478 EUR
£3,072 GBP
View
Most Expensive
NZ Jewellers
31f749c3-f8ca-4e0a-9770-b7dbc8aff630 · Sep 21
€4,607 EUR
$5,167 USD
View
Price last confirmed 42 days ago
15 more retailers have this diamond
Prices start from €1,506 EURSave up to €1,972 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
1.01ct Round
€1,506 EUR