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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 €2,120 EUR
$2,369 USD
As of October 30, 2026
Save €3,457 EUR (62%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €5,577 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 €2,120 to €5,577, a €3,457 spread on the same certified stone. NZ Jewellers lists it at €5,577. 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
Color
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: Oct 30
Current: €5,577 EUR|Low: €2,044 EUR|High: €5,577 EUR|Avg: €3,302 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 6€2,108 EUR
Retailer 7€2,231 EUR
Retailer 9€2,510 EUR
Retailer 3€2,836 EUR
Retailer 2€2,925 EUR
Retailer 8€2,989 EUR
Retailer 4€3,279 EUR
Retailer 5€4,467 EUR
NZ Jewellers€5,577 EUR

43 data points across 9 retailers

23 retailers€2,120 EUR to €5,577 EUR

Retailer 1
-
€2,108 EUR
$2,355 USD
Price last confirmed 13 days ago
A
Retailer 2
-
€2,120 EUR
$2,369 USD
View
B+
Retailer 3
-
€2,164 EUR
$2,418 USD
View
B+
Retailer 4
-
€2,231 EUR
$2,492 USD
View
Final sale: no returns
B+
Retailer 5
-
€2,241 EUR
A$3,851 AUD
View
B+
Retailer 6
-
€2,381 EUR
$2,660 USD
View
B+
Retailer 7
-
€2,417 EUR
$2,700 USD
View
B+
Retailer 8
-
€2,417 EUR
$2,700 USD
View
B+
Retailer 9
-
€2,449 EUR
$2,736 USD
View
B+
Retailer 10
-
€2,510 EUR
$2,804 USD
View
B
Retailer 11
-
€2,741 EUR
$3,062 USD
View
B
Retailer 12
-
€2,757 EUR
$3,080 USD
View
B
Retailer 13
-
€2,757 EUR
$3,080 USD
View
B
Retailer 14
-
€2,789 EUR
$3,116 USD
View
B
Retailer 15
-
€2,836 EUR
£2,494 GBP
View
B
Retailer 16
-
€2,855 EUR
$3,190 USD
View
B+
Retailer 17
-
€2,925 EUR
View
Retailer 18
-
€2,989 EUR
A$5,138 AUD
View
Price last confirmed 24 days ago
B+
Retailer 19
-
€3,021 EUR
$3,375 USD
View
Retailer 20
-
€3,097 EUR
$3,460 USD
View
Price last confirmed 8 days ago
B
Retailer 21
-
€3,279 EUR
ZAR 59,186 ZAR
View
B
Retailer 22
-
€4,467 EUR
£3,930 GBP
View
Most Expensive
B
NZ Jewellers
954e9cce-4327-4cdb-a9ff-6c9d33a1f055 · Oct 30
€5,577 EUR
$6,231 USD
View
22 more retailers have this diamond
Prices start from €2,120 EURSave up to €3,457 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
€2,120 EUR