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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 $3,164 CAD
SGD 3,061 SGD
As of October 29, 2026
Save $3,318 CAD (51%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,482 CAD 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 $3,164 to $6,482, a $3,318 spread on the same certified stone. Wholesale Diamonds Direct lists it at $6,482. 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
Color
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: $4,210 CAD|Low: $3,164 CAD|High: $6,835 CAD|Avg: $4,693 CAD|-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$3,164 CAD
Retailer 5$3,592 CAD
Retailer 6$3,906 CAD
Retailer 1$4,210 CAD
Retailer 2$4,327 CAD
Retailer 7$4,372 CAD
Retailer 9$4,636 CAD
Retailer 10$4,772 CAD
Retailer 4$4,817 CAD
Retailer 3$4,967 CAD
Wholesale Diamonds Direct$6,482 CAD

41 data points across 11 retailers

12 retailers$3,164 CAD to $6,482 CAD

A
Cheapest Retailer
-
$3,164 CAD
SGD 3,061 SGD
A
Retailer 2
-
$3,592 CAD
$2,571 USD
View
A
Retailer 3
-
$3,906 CAD
$2,796 USD
View
A
Retailer 4
-
$4,210 CAD
£2,373 GBP
View
A
Retailer 5
-
$4,327 CAD
SGD 4,186 SGD
View
A
Retailer 6
-
$4,372 CAD
$3,130 USD
View
A
Retailer 7
-
$4,636 CAD
$3,319 USD
View
A
Retailer 8
-
$4,772 CAD
$3,416 USD
View
A
Retailer 9
-
$4,817 CAD
€3,284 EUR
View
B+
Retailer 10
-
$4,965 CAD
$3,554 USD
View
A
Retailer 11
-
$4,967 CAD
£2,800 GBP
View
Most Expensive
B+
Wholesale Diamonds Direct
524836331 · Oct 26
$6,482 CAD
$4,640 USD
View
11 more retailers have this diamond
Prices start from $3,164 CADSave up to $3,318 CAD

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
$3,164 CAD