Round|Natural|GIA

1.00ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6552615902

Certificate GIA 6552615902

Diamond specifications and retailer prices

From €1,696 EUR
HK$14,800 HKD
As of October 29, 2026
Save €1,053 EUR (38%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €4,789 EUR at NZ Jewellers · As of October 6, 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 6552615902. Listed at 24 retailers as of October 29, 2026, with a 62% 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

1.00
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6552615902
Dimensions6.34 × 6.40 × 3.91 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.34 mm6.40 mm1.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552615902
Side View
Table 60.0%Crown 33°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.4%

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: €1,951 EUR|Low: €1,649 EUR|High: €4,062 EUR|Avg: €2,404 EUR|-8.9%
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
Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 14€1,696 EUR
Retailer 7€1,708 EUR
Retailer 2€1,840 EUR
Retailer 16€1,881 EUR
Retailer 1€1,951 EUR
Retailer 18€2,068 EUR
Retailer 4€2,144 EUR
Retailer 15€2,176 EUR
Retailer 8€2,327 EUR
Retailer 17€2,345 EUR
Retailer 19€2,345 EUR
Retailer 3€2,426 EUR
Retailer 12€2,478 EUR
Retailer 11€2,566 EUR
Retailer 5€2,625 EUR
Retailer 6€2,642 EUR
Retailer 13€2,749 EUR
Retailer 10€2,781 EUR
Retailer 9€3,982 EUR

25 data points across 19 retailers

24 retailers€1,696 EUR to €2,749 EUR

A
Cheapest Retailer
-
€1,696 EUR
HK$14,800 HKD
Retailer 2
-
€1,708 EUR
₹181,736 INR
View
Price last confirmed 16 days ago
A
Retailer 3
-
€1,804 EUR
$2,015 USD
View
A
Retailer 4
-
€1,840 EUR
$2,056 USD
View
A
Retailer 5
-
€1,881 EUR
$2,101 USD
View
Final sale: no returns
A
Retailer 6
-
€1,951 EUR
$2,180 USD
View
A
Retailer 7
-
€2,068 EUR
$2,310 USD
View
B+
Retailer 8
-
€2,144 EUR
$2,395 USD
View
B+
Retailer 9
-
€2,176 EUR
£1,914 GBP
View
B+
Retailer 10
-
€2,237 EUR
$2,499 USD
View
Retailer 11
-
€2,248 EUR
$2,512 USD
View
Price last confirmed 16 days ago
Retailer 12
-
€2,327 EUR
SGD 3,513 SGD
View
Price last confirmed 16 days ago
Retailer 13
-
€2,333 EUR
$2,606 USD
View
Price last confirmed 37 days ago
B+
Retailer 14
-
€2,345 EUR
$2,620 USD
View
B+
Retailer 15
-
€2,345 EUR
$2,620 USD
View
B+
Retailer 16
-
€2,426 EUR
$2,710 USD
View
B+
Retailer 17
-
€2,478 EUR
£2,180 GBP
View
Retailer 18
-
€2,566 EUR
A$4,411 AUD
View
Price last confirmed 24 days ago
Retailer 19
-
€2,643 EUR
$2,953 USD
View
Price last confirmed 33 days ago
B+
Retailer 20
-
€2,749 EUR
$3,071 USD
View
Retailer 21
-
€2,781 EUR
ZAR 50,202 ZAR
View
Price last confirmed 20 days ago
Retailer 22
-
€3,982 EUR
£3,503 GBP
View
Price last confirmed 17 days ago
Retailer 23
-
€4,789 EUR
$5,350 USD
View
Price last confirmed 33 days ago
Most Expensive
NZ Jewellers
31f90981-d8e1-4b67-a371-643a28bf8e65 · Oct 6
€4,789 EUR
$5,350 USD
View
Price last confirmed 26 days ago
23 more retailers have this diamond
Prices start from €1,696 EURSave up to €1,053 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
€1,696 EUR