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Oval|Natural|GIA

1.21ct E SI2 Oval Natural Diamond

EX • E/SI2 • GIA 2554328458

Certificate GIA 2554328458

Diamond specifications and retailer prices

From $2,975 USD
As of October 28, 2026
Save $2,682 USD (47%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,657 USD at Helzberg Diamonds · As of October 28, 2026
View at Helzberg Diamonds

About this 1.21ct natural oval diamond

This 1.21ct natural oval sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2554328458. Listed at 13 retailers as of October 28, 2026, with prices from $2,975 to $5,657, a $2,682 spread on the same certified stone. Helzberg Diamonds lists it at $5,657. 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 (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.24°
Pavilion angle38.71°
OriginNatural
Grading LabGIA
CertificateGIA 2554328458
Dimensions8.71 × 5.90 × 3.60 mm
L/W Ratio1.48
Culet sizeNone
Top View
8.71 mm5.90 mm1.21 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554328458
Side View
Table 60.0%Crown 40.24°Girdle: STK-THKPavilion 38.71°Culet: NoneDepth 61.0%

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 28
Current: $5,657 USD|Low: $2,975 USD|High: $5,888 USD|Avg: $4,202 USD|-3.9%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 7$2,975 USD
Retailer 9$3,030 USD
Retailer 4$3,062 USD
Retailer 8$3,207 USD
Retailer 2$3,505 USD
Retailer 12$3,583 USD
Retailer 10$3,810 USD
Retailer 11$3,882 USD
Retailer 6$3,972 USD
Retailer 5$4,127 USD
Retailer 3$5,354 USD
Helzberg Diamonds$5,657 USD

37 data points across 12 retailers

13 retailers$2,975 USD to $5,657 USD

A
Cheapest Retailer
-
$2,975 USD
A
Retailer 2
-
$3,030 USD
SGD 4,095 SGD
View
A
Retailer 3
-
$3,062 USD
View
A
Retailer 4
-
$3,207 USD
View
A
Retailer 5
-
$3,505 USD
£2,760 GBP
View
B+
Retailer 6
-
$3,583 USD
SGD 4,842 SGD
View
B+
Retailer 7
-
$3,810 USD
View
B+
Retailer 8
-
$3,812 USD
View
B+
Retailer 9
-
$3,882 USD
View
B+
Retailer 10
-
$3,972 USD
€3,783 EUR
View
B+
Retailer 11
-
$4,127 USD
View
B
Retailer 12
-
$5,354 USD
View
Most Expensive
B
Helzberg Diamonds
XZRILLKJIOKLO · Oct 28
$5,657 USD
View
12 more retailers have this diamond
Prices start from $2,975 USDSave up to $2,682 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 Oval
$2,975 USD