Round|Natural|GIA

1.21ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 1509523552

Certificate GIA 1509523552

Diamond specifications and retailer prices

From $3,101 USD
£2,442 GBP
As of October 30, 2026
Save $3,003 USD (49%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,104 USD at NZ Jewellers · As of October 30, 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1509523552. Listed at 12 retailers as of October 30, 2026, with prices from $3,101 to $6,104, a $3,003 spread on the same certified stone. NZ Jewellers lists it at $6,104. 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
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1509523552
Dimensions6.75 × 6.80 × 4.23 mm
L/W Ratio1.01
Top View
6.75 mm6.80 mm1.21 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1509523552
Side View
Table 59.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 62.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,101 USD|Low: $3,091 USD|High: $5,930 USD|Avg: $4,043 USD|-0.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 30, 2026
Retailer 1$3,101 USD
Retailer 5$3,110 USD
Retailer 2$3,639 USD
Retailer 3$4,102 USD
Retailer 4$5,890 USD

43 data points across 5 retailers

12 retailers$3,101 USD to $6,104 USD

A
Cheapest Retailer
-
$3,101 USD
£2,442 GBP
A
Retailer 2
-
$3,110 USD
View
Retailer 3
-
$3,175 USD
View
Price last confirmed 36 days ago
A
Retailer 4
-
$3,503 USD
View
A
Retailer 5
-
$3,503 USD
View
B+
Retailer 6
-
$3,637 USD
SGD 4,915 SGD
View
B+
Retailer 7
-
$3,638 USD
View
A
Retailer 8
-
$3,639 USD
£2,865 GBP
View
B+
Retailer 9
-
$4,042 USD
View
B+
Retailer 10
-
$4,102 USD
€3,907 EUR
View
B
Retailer 11
-
$5,890 USD
£4,638 GBP
View
Most Expensive
B
NZ Jewellers
f9f848ad-713c-47f4-a762-4686ae3f456c · Oct 30
$6,104 USD
View
11 more retailers have this diamond
Prices start from $3,101 USDSave up to $3,003 USD

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
$3,101 USD