Round|Natural|GIA

1.21ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2496683844

Certificate GIA 2496683844

Diamond specifications and retailer prices

From €3,806 EUR
As of November 4, 2026
Save €3,798 EUR (50%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €8,173 EUR at NZ Jewellers · As of September 15, 2026
View at NZ Jewellers

About this 1.21ct natural round diamond

This 1.21ct 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 2496683844. Listed at 17 retailers as of November 4, 2026, with a 100% 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

1.21
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2496683844
Dimensions6.78 × 6.74 × 4.22 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.78 mm6.74 mm1.21 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2496683844
Side View
Table 58.0%Crown 36°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 62.3%

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 4
Current: €7,603 EUR|Low: €3,692 EUR|High: €7,603 EUR|Avg: €4,867 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
November 6, 2026
Retailer 5€3,806 EUR
Retailer 10€3,874 EUR
Retailer 14€3,931 EUR
Retailer 12€4,029 EUR
Retailer 4€4,364 EUR
Retailer 6€4,364 EUR
Retailer 11€4,364 EUR
Retailer 13€4,399 EUR
Retailer 2€4,930 EUR
Retailer 3€5,035 EUR
Retailer 7€5,180 EUR
Retailer 8€5,325 EUR
Retailer 9€6,932 EUR
NZ Jewellers€7,603 EUR

42 data points across 14 retailers

17 retailers€3,806 EUR to €7,603 EUR

B+
Cheapest Retailer
-
€3,806 EUR
B+
Retailer 2
-
€3,874 EUR
View
B+
Retailer 3
-
€3,931 EUR
View
B
Retailer 4
-
€4,029 EUR
View
Final sale: no returns
Retailer 5
-
€4,364 EUR
View
Price last confirmed 8 days ago
B
Retailer 6
-
€4,364 EUR
View
B
Retailer 7
-
€4,364 EUR
View
Retailer 8
-
€4,399 EUR
View
Price last confirmed 28 days ago
Retailer 9
-
€4,887 EUR
View
Price last confirmed 53 days ago
B
Retailer 10
-
€4,930 EUR
View
B
Retailer 11
-
€5,035 EUR
View
B
Retailer 12
-
€5,180 EUR
View
B
Retailer 13
-
€5,325 EUR
View
Retailer 14
-
€5,638 EUR
View
Price last confirmed 53 days ago
B
Retailer 15
-
€6,932 EUR
View
B
Retailer 16
-
€7,603 EUR
View
Most Expensive
NZ Jewellers
b3a5a2a6-9c28-4e75-846a-69207593fe8d · Sep 15
€8,173 EUR
$9,125 USD
View
Price last confirmed 52 days ago
16 more retailers have this diamond
Prices start from €3,806 EURSave up to €3,798 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+
1.21ct Round
€3,806 EUR