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Oval|Natural|GIA

1.21ct K SI2 Oval Natural Diamond

EX • K/SI2 • GIA 3545373520

Certificate GIA 3545373520

Diamond specifications and retailer prices

From $2,086 AUD
As of November 6, 2026
Save $2,751 AUD (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,787 AUD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1.21ct natural oval diamond

This 1.21ct natural oval sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3545373520. Listed at 15 retailers as of November 4, 2026, with a 132% 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
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3545373520
Dimensions8.46 × 6.04 × 3.78 mm
L/W Ratio1.40
Top View
8.46 mm6.04 mm1.21 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3545373520
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 62.5%

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: Nov 6
Current: $2,190 AUD|Low: $2,086 AUD|High: $4,945 AUD|Avg: $3,025 AUD|-4.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 7$2,086 AUD
Retailer 1$2,190 AUD
Retailer 5$2,275 AUD
Retailer 2$2,912 AUD
Retailer 8$2,968 AUD
Retailer 4$3,005 AUD
Retailer 3$3,761 AUD
Retailer 6$4,836 AUD

33 data points across 8 retailers

15 retailers$2,086 AUD to $4,836 AUD

A
Cheapest Retailer
-
$2,086 AUD
A
Retailer 2
-
$2,190 AUD
View
A
Retailer 3
-
$2,275 AUD
View
B+
Retailer 4
-
$2,642 AUD
View
Retailer 5
-
$2,783 AUD
View
Price last confirmed 21 days ago
Retailer 6
-
$2,783 AUD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
$2,892 AUD
View
Retailer 8
-
$2,911 AUD
View
Price last confirmed 21 days ago
B+
Retailer 9
-
$2,912 AUD
View
B+
Retailer 10
-
$2,968 AUD
View
B+
Retailer 11
-
$3,005 AUD
View
Retailer 12
-
$3,211 AUD
View
Price last confirmed 19 days ago
B
Retailer 13
-
$3,761 AUD
View
B
Retailer 14
-
$4,836 AUD
View
Most Expensive
NZ Jewellers
57397389-5e4d-4cb0-87e4-ad68ce9fbf2f · Oct 17
$6,787 AUD
$4,663 USD
View
Price last confirmed 20 days ago
14 more retailers have this diamond
Prices start from $2,086 AUDSave up to $2,751 AUD

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
$2,086 AUD