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Oval|Natural|GIA

1.21ct I SI2 Oval Natural Diamond

EX • I/SI2 • GIA 2235566747

Certificate GIA 2235566747

Diamond specifications and retailer prices

From $3,537 AUD
As of November 4, 2026
Save $4,475 AUD (56%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $8,370 AUD at NZ Jewellers · As of October 20, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2235566747. Listed at 22 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.42°
Pavilion angle41.12°
OriginNatural
Grading LabGIA
CertificateGIA 2235566747
Dimensions8.51 × 5.86 × 3.81 mm
L/W Ratio1.45
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
8.51 mm5.86 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2235566747
Side View
Table 60.0%Crown 36.42°Girdle: MED-THKPavilion 41.12°Culet: NoneDepth 65.1%

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 4
Current: $5,590 AUD|Low: $3,467 AUD|High: $8,130 AUD|Avg: $4,865 AUD|+1.4%
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
November 6, 2026
Retailer 10$3,537 AUD
Retailer 7$3,663 AUD
Retailer 6$3,799 AUD
Retailer 4$4,017 AUD
Retailer 11$4,352 AUD
Retailer 13$4,352 AUD
Retailer 12$4,519 AUD
Retailer 5$4,727 AUD
Retailer 15$4,782 AUD
Retailer 8$4,970 AUD
Retailer 2$5,050 AUD
Retailer 14$5,050 AUD
Retailer 3$5,210 AUD
Retailer 1$5,590 AUD
Retailer 9$8,012 AUD

44 data points across 15 retailers

22 retailers$3,537 AUD to $8,012 AUD

A
Cheapest Retailer
-
$3,537 AUD
A
Retailer 2
-
$3,663 AUD
View
A
Retailer 3
-
$3,685 AUD
View
B+
Retailer 4
-
$3,799 AUD
View
B+
Retailer 5
-
$3,898 AUD
View
B+
Retailer 6
-
$3,940 AUD
View
B+
Retailer 7
-
$4,017 AUD
View
Final sale: no returns
Retailer 8
-
$4,352 AUD
View
Price last confirmed 17 days ago
Retailer 9
-
$4,352 AUD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$4,352 AUD
View
Retailer 11
-
$4,519 AUD
View
Price last confirmed 21 days ago
B+
Retailer 12
-
$4,519 AUD
View
B+
Retailer 13
-
$4,727 AUD
View
B+
Retailer 14
-
$4,782 AUD
View
B+
Retailer 15
-
$4,970 AUD
View
Retailer 16
-
$5,021 AUD
View
Price last confirmed 16 days ago
B
Retailer 17
-
$5,050 AUD
View
B
Retailer 18
-
$5,050 AUD
View
B
Retailer 19
-
$5,210 AUD
View
B+
Retailer 20
-
$5,590 AUD
View
B
Retailer 21
-
$8,012 AUD
View
Most Expensive
NZ Jewellers
7d1c17a7-9865-4798-ba82-035db5a5b8f9 · Oct 20
$8,370 AUD
$5,751 USD
View
Price last confirmed 16 days ago
21 more retailers have this diamond
Prices start from $3,537 AUDSave up to $4,475 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
$3,537 AUD