CaratHunter
Plans
Oval|Natural|GIA

1.20ct K SI1 Oval Natural Diamond

GD • K/SI1 • GIA 5556637102

Certificate GIA 5556637102

Diamond specifications and retailer prices

From $2,365 AUD
As of November 5, 2026
Save $4,146 AUD (64%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,511 AUD at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5556637102. Listed at 15 retailers as of November 5, 2026, with prices from $2,365 to $6,511, a $4,146 spread on the same certified stone. NZ Jewellers lists it at $6,511. 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

1.20
Carat
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle41.8°
Pavilion angle38.3°
OriginNatural
Grading LabGIA
CertificateGIA 5556637102
Dimensions8.28 × 5.83 × 3.78 mm
L/W Ratio1.42
Girdle conditionFaceted
Top View
8.28 mm5.83 mm1.20 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5556637102
Side View
Table 65.0%Crown 41.8°Girdle: THN-THKPavilion 38.3°Culet: NoneDepth 64.8%

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 5
Current: $6,511 AUD|Low: $2,365 AUD|High: $6,807 AUD|Avg: $3,462 AUD|-4.3%
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
November 6, 2026
Retailer 12$2,365 AUD
Retailer 7$2,400 AUD
Retailer 15$2,550 AUD
Retailer 11$2,605 AUD
Retailer 5$2,733 AUD
Retailer 14$2,822 AUD
Retailer 6$2,864 AUD
Retailer 9$2,882 AUD
Retailer 4$2,952 AUD
Retailer 10$3,256 AUD
Retailer 8$3,363 AUD
Retailer 13$3,802 AUD
Retailer 2$4,229 AUD
Retailer 3$5,496 AUD
NZ Jewellers$6,511 AUD

33 data points across 15 retailers

15 retailers$2,365 AUD to $6,511 AUD

A
Cheapest Retailer
-
$2,365 AUD
B+
Retailer 2
-
$2,400 AUD
View
B+
Retailer 3
-
$2,550 AUD
View
B+
Retailer 4
-
$2,605 AUD
View
Final sale: no returns
B+
Retailer 5
-
$2,733 AUD
View
B+
Retailer 6
-
$2,822 AUD
View
Retailer 7
-
$2,864 AUD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$2,882 AUD
View
B+
Retailer 9
-
$2,952 AUD
View
B+
Retailer 10
-
$3,256 AUD
View
B
Retailer 11
-
$3,363 AUD
View
B
Retailer 12
-
$3,802 AUD
View
B
Retailer 13
-
$4,229 AUD
View
B
Retailer 14
-
$5,496 AUD
View
Most Expensive
C
NZ Jewellers
df2af19c-e29f-41ac-baf8-281f35e77658 · Nov 5
$6,511 AUD
$4,474 USD
View
14 more retailers have this diamond
Prices start from $2,365 AUDSave up to $4,146 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
1.20ct Oval
$2,365 AUD