Oval|Natural|GIA

1.20ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 6545562350

Certificate GIA 6545562350

Diamond specifications and retailer prices

From $4,724 AUD
As of November 1, 2026
Save $5,100 AUD (52%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $10,234 AUD at NZ Jewellers · As of September 24, 2026
View at NZ Jewellers

About this 1.2ct natural oval diamond

This 1.2ct natural oval sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545562350. Listed at 27 retailers as of November 1, 2026, with a 108% 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

1.20
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6545562350
Dimensions8.57 × 6.14 × 3.50 mm
L/W Ratio1.40
Top View
8.57 mm6.14 mm1.20 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6545562350
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 57.0%

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 1
Current: $6,008 AUD|Low: $3,318 AUD|High: $9,942 AUD|Avg: $6,046 AUD|+32.4%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 3, 2026
Retailer 11$3,318 AUD
Retailer 9$4,724 AUD
Retailer 7$4,998 AUD
Retailer 8$5,108 AUD
Retailer 17$5,322 AUD
Retailer 18$5,414 AUD
Retailer 19$5,579 AUD
Retailer 12$5,728 AUD
Retailer 1$6,008 AUD
Retailer 5$6,025 AUD
Retailer 6$6,025 AUD
Retailer 2$6,199 AUD
Retailer 4$6,215 AUD
Retailer 10$6,270 AUD
Retailer 3$6,298 AUD
Retailer 13$6,645 AUD
Retailer 15$7,220 AUD
Retailer 16$8,575 AUD
Retailer 14$9,824 AUD

38 data points across 19 retailers

27 retailers$4,724 AUD to $9,824 AUD

B+
Cheapest Retailer
-
$4,724 AUD
Retailer 2
-
$4,998 AUD
View
Price last confirmed 7 days ago
Retailer 3
-
$5,092 AUD
View
Price last confirmed 66 days ago
B+
Retailer 4
-
$5,108 AUD
View
Retailer 5
-
$5,322 AUD
View
Price last confirmed 8 days ago
Retailer 6
-
$5,322 AUD
View
Price last confirmed 43 days ago
Retailer 7
-
$5,322 AUD
View
Price last confirmed 29 days ago
Retailer 8
-
$5,322 AUD
View
Price last confirmed 29 days ago
B+
Retailer 9
-
$5,414 AUD
View
Retailer 10
-
$5,526 AUD
View
Price last confirmed 38 days ago
B+
Retailer 11
-
$5,579 AUD
View
B+
Retailer 12
-
$5,728 AUD
View
B
Retailer 13
-
$6,008 AUD
View
B
Retailer 14
-
$6,025 AUD
View
B
Retailer 15
-
$6,025 AUD
View
Retailer 16
-
$6,140 AUD
View
Price last confirmed 38 days ago
B
Retailer 17
-
$6,199 AUD
View
B
Retailer 18
-
$6,215 AUD
View
B
Retailer 19
-
$6,270 AUD
View
Retailer 20
-
$6,298 AUD
View
Price last confirmed 33 days ago
B
Retailer 21
-
$6,645 AUD
View
B
Retailer 22
-
$7,220 AUD
View
Retailer 23
-
$7,689 AUD
View
Price last confirmed 69 days ago
B
Retailer 24
-
$8,575 AUD
View
B
Retailer 25
-
$9,824 AUD
View
Retailer 26
-
$10,234 AUD
View
Price last confirmed 38 days ago
Most Expensive
NZ Jewellers
cd556a2b-b5c6-4984-bec9-63804a495a5b · Sep 24
$10,234 AUD
$7,032 USD
View
Price last confirmed 42 days ago
26 more retailers have this diamond
Prices start from $4,724 AUDSave up to $5,100 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+
1.20ct Oval
$4,724 AUD