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Oval|Natural|IGI

1.21ct K SI2 Oval Natural Diamond

GD • K/SI2 • IGI 508118603

Shape and cutting style on the report: Oval brilliant

Certificate IGI 508118603

Diamond specifications and retailer prices

From $2,189 AUD
As of November 6, 2026
Save $4,197 AUD (66%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,386 AUD at NZ Jewellers · As of November 5, 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 standard cut grade and certified by IGI 508118603. Listed at 11 retailers as of November 5, 2026, with prices from $2,189 to $6,386, a $4,197 spread on the same certified stone. NZ Jewellers lists it at $6,386. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
K
Colour
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle43.4°
Pavilion angle38.2°
OriginNatural
Grading LabIGI
CertificateIGI 508118603
Dimensions7.89 × 5.98 × 3.76 mm
L/W Ratio1.32
Girdle conditionFaceted
Culet sizePointed
Top View
7.89 mm5.98 mm1.21 ctK / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateIGI 508118603
Side View
Table 58.0%Crown 43.4°Girdle: MED-STKPavilion 38.2°Culet: NoneDepth 62.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,386 AUD|Low: $2,189 AUD|High: $6,386 AUD|Avg: $3,646 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 2$2,189 AUD
Retailer 8$2,761 AUD
Retailer 7$2,789 AUD
Retailer 5$2,809 AUD
Retailer 9$3,055 AUD
Retailer 6$3,196 AUD
Retailer 10$3,525 AUD
Retailer 3$4,149 AUD
Retailer 4$5,337 AUD
NZ Jewellers$6,386 AUD

41 data points across 10 retailers

11 retailers$2,189 AUD to $6,386 AUD

B+
Cheapest Retailer
-
$2,189 AUD
B+
Retailer 2
-
$2,789 AUD
View
B+
Retailer 3
-
$2,809 AUD
View
Retailer 4
-
$3,055 AUD
View
Price last confirmed 8 days ago
B
Retailer 5
-
$3,055 AUD
View
B
Retailer 6
-
$3,196 AUD
View
B
Retailer 7
-
$3,256 AUD
View
B
Retailer 8
-
$3,525 AUD
View
B
Retailer 9
-
$4,149 AUD
View
C
Retailer 10
-
$5,337 AUD
View
Most Expensive
C
NZ Jewellers
b324f108-aa85-437c-be58-3bc65136f93e · Nov 5
$6,386 AUD
$4,388 USD
View
10 more retailers have this diamond
Prices start from $2,189 AUDSave up to $4,197 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.

B+
1.21ct Oval
$2,189 AUD