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Round|Natural|GIA

1.00ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 5556893217

Certificate GIA 5556893217

Diamond specifications and retailer prices

From €2,138 EUR
$2,389 USD
As of October 30, 2026
Save €3,372 EUR (61%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €5,510 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5556893217. Listed at 22 retailers as of October 30, 2026, with prices from €2,138 to €5,510, a €3,372 spread on the same certified stone. NZ Jewellers lists it at €5,510. 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
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5556893217
Dimensions6.34 × 6.39 × 3.98 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Crystal, Feather, Needle
Top View
6.34 mm6.39 mm1.00 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5556893217
Side View
Table 55.0%Crown 35°Girdle: Med. - Sli. ThickPavilion 40.6°Culet: NoneDepth 62.5%

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: €5,510 EUR|Low: €2,020 EUR|High: €5,510 EUR|Avg: €2,993 EUR
NZ Jewellers
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
November 1, 2026
Retailer 5€2,103 EUR
Retailer 8€2,138 EUR
Retailer 7€2,203 EUR
Retailer 9€2,354 EUR
Retailer 15€2,388 EUR
Retailer 18€2,388 EUR
Retailer 16€2,479 EUR
Retailer 2€2,536 EUR
Retailer 6€2,708 EUR
Retailer 3€2,755 EUR
Retailer 12€2,801 EUR
Retailer 10€2,953 EUR
Retailer 4€3,069 EUR
Retailer 11€3,072 EUR
Retailer 13€3,240 EUR
Retailer 17€4,414 EUR
Retailer 14€4,570 EUR
NZ Jewellers€5,510 EUR

29 data points across 18 retailers

22 retailers€2,138 EUR to €5,510 EUR

Retailer 1
-
€2,103 EUR
$2,350 USD
Price last confirmed 11 days ago
A
Retailer 2
-
€2,138 EUR
$2,389 USD
View
B+
Retailer 3
-
€2,203 EUR
$2,461 USD
View
Final sale: no returns
B+
Retailer 4
-
€2,269 EUR
$2,535 USD
View
B+
Retailer 5
-
€2,354 EUR
$2,630 USD
View
B+
Retailer 6
-
€2,388 EUR
$2,668 USD
View
B+
Retailer 7
-
€2,388 EUR
$2,668 USD
View
B+
Retailer 8
-
€2,421 EUR
$2,705 USD
View
B+
Retailer 9
-
€2,479 EUR
$2,770 USD
View
B+
Retailer 10
-
€2,536 EUR
£2,231 GBP
View
B+
Retailer 11
-
€2,708 EUR
$3,025 USD
View
B
Retailer 12
-
€2,755 EUR
$3,078 USD
View
B+
Retailer 13
-
€2,801 EUR
£2,464 GBP
View
Retailer 14
-
€2,953 EUR
A$5,076 AUD
View
Price last confirmed 24 days ago
B+
Retailer 15
-
€2,992 EUR
$3,342 USD
View
Retailer 16
-
€3,060 EUR
$3,419 USD
View
Price last confirmed 17 days ago
B+
Retailer 17
-
€3,069 EUR
£2,700 GBP
View
B+
Retailer 18
-
€3,072 EUR
View
B
Retailer 19
-
€3,240 EUR
ZAR 58,471 ZAR
View
Retailer 20
-
€4,414 EUR
£3,883 GBP
View
Price last confirmed 7 days ago
B
Retailer 21
-
€4,570 EUR
£4,020 GBP
View
Most Expensive
B
NZ Jewellers
87d487b7-68e7-47e4-8469-29aec22710e0 · Oct 30
€5,510 EUR
$6,156 USD
View
21 more retailers have this diamond
Prices start from €2,138 EURSave up to €3,372 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
€2,138 EUR