CaratHunter
Plans
Oval|Natural|GIA

1.31ct K SI1 Oval Natural Diamond

VG • K/SI1 • GIA 6545002542

Certificate GIA 6545002542

Diamond specifications and retailer prices

From $3,459 AUD
As of November 6, 2026
Save $4,484 AUD (56%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,217 AUD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 1.31ct natural oval diamond

This 1.31ct natural oval sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6545002542. Listed at 11 retailers as of November 4, 2026, with a 130% 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

1.31
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545002542
Dimensions8.57 × 6.14 × 3.87 mm
L/W Ratio1.40
Top View
8.57 mm6.14 mm1.31 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545002542
Side View
Table 62.0%CrownGirdle: ThickPavilionCulet: NoneDepth 63.1%

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 6
Current: $8,217 AUD|Low: $4,273 AUD|High: $8,217 AUD|Avg: $5,703 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$4,273 AUD
Retailer 9$4,438 AUD
Retailer 2$4,619 AUD
Retailer 8$4,931 AUD
Retailer 6$5,525 AUD
Retailer 3$5,544 AUD
Retailer 4$5,813 AUD
Retailer 5$7,944 AUD
NZ Jewellers$8,217 AUD

43 data points across 9 retailers

11 retailers$3,459 AUD to $7,944 AUD

A
Cheapest Retailer
-
$3,459 AUD
B+
Retailer 2
-
$3,701 AUD
View
Retailer 3
-
$4,273 AUD
View
Price last confirmed 15 days ago
Retailer 4
-
$4,438 AUD
View
Price last confirmed 15 days ago
B+
Retailer 5
-
$4,619 AUD
View
Retailer 6
-
$4,931 AUD
View
Price last confirmed 14 days ago
B
Retailer 7
-
$4,972 AUD
View
B
Retailer 8
-
$5,544 AUD
View
B
Retailer 9
-
$5,813 AUD
View
B
Retailer 10
-
$7,944 AUD
View
Most Expensive
NZ Jewellers
e0950575-feaf-4592-9e1f-52dbc1dff84b · Oct 20
$8,217 AUD
$5,646 USD
View
Price last confirmed 16 days ago
10 more retailers have this diamond
Prices start from $3,459 AUDSave up to $4,484 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
1.31ct Oval
$3,459 AUD