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Oval|Natural|GIA

1.21ct I SI1 Oval Natural Diamond

GD • I/SI1 • GIA 5543326587

Certificate GIA 5543326587

Diamond specifications and retailer prices

From $3,688 AUD
As of November 6, 2026
Save $4,638 AUD (56%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $8,697 AUD at NZ Jewellers · As of October 30, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5543326587. Listed at 21 retailers as of November 4, 2026, with a 126% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.12°
Pavilion angle36.71°
OriginNatural
Grading LabGIA
CertificateGIA 5543326587
Dimensions8.32 × 5.89 × 3.76 mm
L/W Ratio1.41
Top View
8.32 mm5.89 mm1.21 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5543326587
Side View
Table 60.0%Crown 41.12°Girdle: STK-THKPavilion 36.71°Culet: NoneDepth 63.9%

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: $8,697 AUD|Low: $3,650 AUD|High: $8,808 AUD|Avg: $5,482 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 6, 2026
Retailer 20$3,688 AUD
Retailer 12$4,043 AUD
Retailer 17$4,304 AUD
Retailer 21$4,359 AUD
Retailer 8$4,432 AUD
Retailer 7$4,608 AUD
Retailer 5$4,646 AUD
Retailer 15$4,759 AUD
Retailer 9$4,828 AUD
Retailer 2$4,842 AUD
Retailer 11$4,992 AUD
Retailer 13$5,126 AUD
Retailer 4$5,184 AUD
Retailer 10$5,490 AUD
Retailer 14$5,576 AUD
Retailer 3$5,760 AUD
Retailer 19$5,842 AUD
Retailer 16$6,094 AUD
Retailer 6$7,085 AUD
Retailer 18$8,326 AUD
NZ Jewellers$8,697 AUD

30 data points across 21 retailers

21 retailers$3,688 AUD to $8,326 AUD

B+
Cheapest Retailer
-
$3,688 AUD
B+
Retailer 2
-
$4,043 AUD
View
B+
Retailer 3
-
$4,304 AUD
View
B+
Retailer 4
-
$4,359 AUD
View
B+
Retailer 5
-
$4,432 AUD
View
B+
Retailer 6
-
$4,608 AUD
View
Final sale: no returns
B
Retailer 7
-
$4,646 AUD
View
B+
Retailer 8
-
$4,759 AUD
View
B
Retailer 9
-
$4,828 AUD
View
B
Retailer 10
-
$4,842 AUD
View
Retailer 11
-
$4,992 AUD
View
Price last confirmed 8 days ago
B
Retailer 12
-
$5,126 AUD
View
Retailer 13
-
$5,184 AUD
View
Price last confirmed 8 days ago
B
Retailer 14
-
$5,490 AUD
View
Retailer 15
-
$5,576 AUD
View
Price last confirmed 29 days ago
B
Retailer 16
-
$5,760 AUD
View
B
Retailer 17
-
$5,842 AUD
View
B
Retailer 18
-
$6,094 AUD
View
B
Retailer 19
-
$7,085 AUD
View
B
Retailer 20
-
$8,326 AUD
View
Most Expensive
NZ Jewellers
35f8d467-93a2-4b2e-9f5a-cc8e6eef1d4b · Oct 30
$8,697 AUD
$5,976 USD
View
Price last confirmed 7 days ago
20 more retailers have this diamond
Prices start from $3,688 AUDSave up to $4,638 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
$3,688 AUD