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Round|Natural|GIA

1.00ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 5406598535

Certificate GIA 5406598535

Diamond specifications and retailer prices

From €2,200 EUR
₹234,036 INR
As of October 31, 2026
Save €3,857 EUR (64%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €6,056 EUR at Diamond Quarter · As of November 2, 2026
View at Diamond Quarter

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5406598535. Listed at 21 retailers as of October 31, 2026, with prices from €2,200 to €6,056, a €3,857 spread on the same certified stone. Diamond Quarter lists it at €6,056. 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle32.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5406598535
Dimensions6.54 × 6.52 × 3.88 mm
L/W Ratio1.00
Top View
6.54 mm6.52 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 5406598535
Side View
Table 58.0%Crown 32.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 59.4%

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 31
Current: €2,939 EUR|Low: €2,194 EUR|High: €5,348 EUR|Avg: €3,158 EUR|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 8€2,200 EUR
Retailer 9€2,234 EUR
Retailer 10€2,448 EUR
Retailer 2€2,779 EUR
Retailer 11€2,784 EUR
Retailer 3€2,820 EUR
Retailer 1€2,939 EUR
Retailer 5€3,173 EUR
Retailer 4€3,208 EUR
Retailer 7€3,755 EUR
Retailer 6€5,109 EUR

29 data points across 11 retailers

21 retailers€2,200 EUR to €6,056 EUR

A
Cheapest Retailer
-
€2,200 EUR
₹234,036 INR
A
Retailer 2
-
€2,234 EUR
HK$19,500 HKD
View
A
Retailer 3
-
€2,448 EUR
A$4,208 AUD
View
A
Retailer 4
-
€2,635 EUR
$2,944 USD
View
B+
Retailer 5
-
€2,779 EUR
$3,105 USD
View
B+
Retailer 6
-
€2,784 EUR
$3,110 USD
View
B+
Retailer 7
-
€2,820 EUR
$3,150 USD
View
Final sale: no returns
B+
Retailer 8
-
€2,939 EUR
£2,586 GBP
View
B+
Retailer 9
-
€3,055 EUR
$3,413 USD
View
B+
Retailer 10
-
€3,055 EUR
$3,413 USD
View
B+
Retailer 11
-
€3,103 EUR
SGD 4,685 SGD
View
B+
Retailer 12
-
€3,172 EUR
$3,544 USD
View
B+
Retailer 13
-
€3,173 EUR
£2,791 GBP
View
B+
Retailer 14
-
€3,208 EUR
View
Retailer 15
-
€3,276 EUR
A$5,630 AUD
View
Price last confirmed 29 days ago
B+
Retailer 16
-
€3,525 EUR
$3,938 USD
View
B+
Retailer 17
-
€3,755 EUR
ZAR 67,775 ZAR
View
B
Retailer 18
-
€5,109 EUR
£4,494 GBP
View
B
Retailer 19
-
€5,322 EUR
$5,946 USD
View
B
Retailer 20
-
€5,651 EUR
$6,313 USD
View
Most Expensive
B
Diamond Quarter
1.0SI1D5435FF5FN · Nov 2
€6,056 EUR
£5,328 GBP
View
20 more retailers have this diamond
Prices start from €2,200 EURSave up to €3,857 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
€2,200 EUR