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Round|Natural|GIA

1.21ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 2556316311

Certificate GIA 2556316311

Diamond specifications and retailer prices

From €2,028 EUR
SGD 3,061 SGD
As of October 29, 2026
Save €2,126 EUR (51%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €4,154 EUR at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556316311. Listed at 12 retailers as of October 26, 2026, with prices from €2,028 to €4,154, a €2,126 spread on the same certified stone. Wholesale Diamonds Direct lists it at €4,154. 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
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2556316311
Dimensions6.78 × 6.80 × 4.24 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.78 mm6.80 mm1.21 ctE / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556316311
Side View
Table 56.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.4%

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: €2,698 EUR|Low: €2,028 EUR|High: €4,380 EUR|Avg: €3,007 EUR|-4.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Wholesale Diamonds Direct
October 31, 2026
Retailer 8€2,028 EUR
Retailer 5€2,301 EUR
Retailer 6€2,503 EUR
Retailer 1€2,698 EUR
Retailer 2€2,773 EUR
Retailer 7€2,802 EUR
Retailer 9€2,971 EUR
Retailer 10€3,058 EUR
Retailer 4€3,086 EUR
Retailer 3€3,183 EUR
Wholesale Diamonds Direct€4,154 EUR

41 data points across 11 retailers

12 retailers€2,028 EUR to €4,154 EUR

A
Cheapest Retailer
-
€2,028 EUR
SGD 3,061 SGD
A
Retailer 2
-
€2,301 EUR
$2,571 USD
View
A
Retailer 3
-
€2,503 EUR
$2,796 USD
View
A
Retailer 4
-
€2,698 EUR
£2,373 GBP
View
A
Retailer 5
-
€2,773 EUR
SGD 4,186 SGD
View
A
Retailer 6
-
€2,802 EUR
$3,130 USD
View
A
Retailer 7
-
€2,971 EUR
$3,319 USD
View
A
Retailer 8
-
€3,058 EUR
$3,416 USD
View
A
Retailer 9
-
€3,086 EUR
View
B+
Retailer 10
-
€3,181 EUR
$3,554 USD
View
A
Retailer 11
-
€3,183 EUR
£2,800 GBP
View
Most Expensive
B+
Wholesale Diamonds Direct
524836331 · Oct 26
€4,154 EUR
$4,640 USD
View
11 more retailers have this diamond
Prices start from €2,028 EURSave up to €2,126 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
1.21ct Round
€2,028 EUR