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Round|Natural|GIA

1.01ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 6381212727

Certificate GIA 6381212727

Diamond specifications and retailer prices

From €3,248 EUR
As of November 6, 2026
Save €5,070 EUR (61%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: €8,318 EUR at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.01ct natural round diamond

This 1.01ct 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 6381212727. Listed at 25 retailers as of November 5, 2026, with prices from €3,248 to €8,318, a €5,070 spread on the same certified stone. Diamond Quarter lists it at €8,318. 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

1.01
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6381212727
Dimensions6.40 × 6.37 × 3.96 mm
L/W Ratio1.00
Top View
6.40 mm6.37 mm1.01 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6381212727
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €4,147 EUR|Low: €3,321 EUR|High: €6,985 EUR|Avg: €4,522 EUR|-1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7€3,332 EUR
Retailer 5€3,455 EUR
Retailer 8€3,623 EUR
Retailer 1€4,147 EUR
Retailer 4€4,240 EUR
Retailer 9€4,368 EUR
Retailer 3€4,591 EUR
Retailer 2€5,288 EUR
Retailer 6€6,883 EUR

36 data points across 9 retailers

25 retailers€3,248 EUR to €8,318 EUR

B+
Cheapest Retailer
-
€3,248 EUR
B+
Retailer 2
-
€3,329 EUR
View
B+
Retailer 3
-
€3,332 EUR
View
B+
Retailer 4
-
€3,455 EUR
View
B
Retailer 5
-
€3,623 EUR
View
Final sale: no returns
B+
Retailer 6
-
€3,720 EUR
View
B+
Retailer 7
-
€3,903 EUR
View
Retailer 8
-
€3,926 EUR
View
Price last confirmed 8 days ago
B+
Retailer 9
-
€3,926 EUR
View
B+
Retailer 10
-
€3,926 EUR
View
B+
Retailer 11
-
€4,147 EUR
View
B+
Retailer 12
-
€4,155 EUR
View
B+
Retailer 13
-
€4,240 EUR
View
Retailer 14
-
€4,368 EUR
View
Price last confirmed 28 days ago
B
Retailer 15
-
€4,419 EUR
View
B
Retailer 16
-
€4,419 EUR
View
B
Retailer 17
-
€4,530 EUR
View
B
Retailer 18
-
€4,562 EUR
View
B
Retailer 19
-
€4,591 EUR
View
Retailer 20
-
€4,785 EUR
View
Price last confirmed 14 days ago
B
Retailer 21
-
€5,288 EUR
View
B
Retailer 22
-
€6,271 EUR
View
B
Retailer 23
-
€6,883 EUR
View
B
Retailer 24
-
€7,551 EUR
View
Most Expensive
B
Diamond Quarter
1.01SI1D63278FF2N · Nov 5
€8,318 EUR
£7,352 GBP
View
24 more retailers have this diamond
Prices start from €3,248 EURSave up to €5,070 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.

B+
1.01ct Round
€3,248 EUR