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Oval|Natural|GIA

1.21ct K SI1 Oval Natural Diamond

EX • K/SI1 • GIA 2547470600

Certificate GIA 2547470600

Diamond specifications and retailer prices

From $2,374 AUD
As of November 6, 2026
Save $3,026 AUD (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $6,664 AUD at NZ Jewellers · As of September 25, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2547470600. Listed at 20 retailers as of November 4, 2026, with a 127% 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle39.7°
OriginNatural
Grading LabGIA
CertificateGIA 2547470600
Dimensions8.31 × 5.93 × 3.77 mm
L/W Ratio1.40
Top View
8.31 mm5.93 mm1.21 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2547470600
Side View
Table 59.0%CrownGirdle: MED-THKPavilion 39.7°Culet: NoneDepth 63.6%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $3,013 AUD|Low: $2,349 AUD|High: $5,549 AUD|Avg: $3,298 AUD
Retailer 1
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
November 7, 2026
Retailer 7$2,374 AUD
Retailer 4$2,384 AUD
Retailer 17$2,585 AUD
Retailer 18$2,617 AUD
Retailer 9$2,771 AUD
Retailer 10$2,867 AUD
Retailer 1$3,013 AUD
Retailer 6$3,036 AUD
Retailer 15$3,036 AUD
Retailer 3$3,056 AUD
Retailer 13$3,358 AUD
Retailer 12$3,369 AUD
Retailer 8$3,387 AUD
Retailer 14$3,772 AUD
Retailer 5$4,221 AUD
Retailer 11$4,280 AUD
Retailer 2$4,765 AUD
Retailer 16$5,400 AUD

30 data points across 18 retailers

20 retailers$2,374 AUD to $5,400 AUD

A
Cheapest Retailer
-
$2,374 AUD
A
Retailer 2
-
$2,384 AUD
View
A
Retailer 3
-
$2,585 AUD
View
Final sale: no returns
A
Retailer 4
-
$2,617 AUD
View
A
Retailer 5
-
$2,771 AUD
View
A
Retailer 6
-
$2,867 AUD
View
B+
Retailer 7
-
$3,013 AUD
View
B+
Retailer 8
-
$3,036 AUD
View
B+
Retailer 9
-
$3,036 AUD
View
B+
Retailer 10
-
$3,056 AUD
View
B+
Retailer 11
-
$3,358 AUD
View
B+
Retailer 12
-
$3,369 AUD
View
B+
Retailer 13
-
$3,387 AUD
View
Retailer 14
-
$3,387 AUD
View
Price last confirmed 17 days ago
B+
Retailer 15
-
$3,772 AUD
View
B
Retailer 16
-
$4,221 AUD
View
B
Retailer 17
-
$4,280 AUD
View
B
Retailer 18
-
$4,765 AUD
View
B
Retailer 19
-
$5,400 AUD
View
Most Expensive
NZ Jewellers
a4adac43-706e-42c0-8ebb-5eb68a457049 · Sep 25
$6,664 AUD
$4,579 USD
View
Price last confirmed 43 days ago
19 more retailers have this diamond
Prices start from $2,374 AUDSave up to $3,026 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
$2,374 AUD