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Round|Natural|GIA

1.00ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6502517721

Certificate GIA 6502517721

Diamond specifications and retailer prices

From €2,100 EUR
$2,355 USD
As of November 1, 2026
Save €3,456 EUR (62%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €5,555 EUR at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6502517721. Listed at 23 retailers as of October 30, 2026, with prices from €2,100 to €5,555, a €3,456 spread on the same certified stone. NZ Jewellers lists it at €5,555. 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

1.00
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6502517721
Dimensions6.37 × 6.32 × 3.93 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.37 mm6.32 mm1.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6502517721
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°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: Nov 1
Current: €2,824 EUR|Low: €2,036 EUR|High: €4,498 EUR|Avg: €2,958 EUR|+3.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 5€2,100 EUR
Retailer 6€2,222 EUR
Retailer 8€2,500 EUR
Retailer 1€2,824 EUR
Retailer 3€2,913 EUR
Retailer 7€2,977 EUR
Retailer 4€3,266 EUR
Retailer 2€4,444 EUR

43 data points across 8 retailers

23 retailers€2,100 EUR to €5,555 EUR

A
Cheapest Retailer
-
€2,100 EUR
$2,355 USD
A
Retailer 2
-
€2,112 EUR
$2,369 USD
View
B+
Retailer 3
-
€2,156 EUR
$2,418 USD
View
B+
Retailer 4
-
€2,222 EUR
$2,492 USD
View
Final sale: no returns
B+
Retailer 5
-
€2,232 EUR
A$3,851 AUD
View
B+
Retailer 6
-
€2,372 EUR
$2,660 USD
View
B+
Retailer 7
-
€2,407 EUR
$2,700 USD
View
B+
Retailer 8
-
€2,407 EUR
$2,700 USD
View
B+
Retailer 9
-
€2,440 EUR
$2,736 USD
View
B+
Retailer 10
-
€2,500 EUR
$2,804 USD
View
B
Retailer 11
-
€2,730 EUR
$3,062 USD
View
B
Retailer 12
-
€2,746 EUR
$3,080 USD
View
B
Retailer 13
-
€2,746 EUR
$3,080 USD
View
B
Retailer 14
-
€2,778 EUR
$3,116 USD
View
B
Retailer 15
-
€2,824 EUR
£2,494 GBP
View
B
Retailer 16
-
€2,844 EUR
$3,190 USD
View
B+
Retailer 17
-
€2,913 EUR
View
Retailer 18
-
€2,977 EUR
A$5,138 AUD
View
Price last confirmed 25 days ago
B+
Retailer 19
-
€3,009 EUR
$3,375 USD
View
Retailer 20
-
€3,085 EUR
$3,460 USD
View
Price last confirmed 10 days ago
B
Retailer 21
-
€3,266 EUR
ZAR 59,186 ZAR
View
B
Retailer 22
-
€4,444 EUR
£3,925 GBP
View
Most Expensive
B
NZ Jewellers
954e9cce-4327-4cdb-a9ff-6c9d33a1f055 · Oct 30
€5,555 EUR
$6,231 USD
View
22 more retailers have this diamond
Prices start from €2,100 EURSave up to €3,456 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
1.00ct Round
€2,100 EUR