Oval|Natural|GIA

1.57ct K SI1 Oval Natural Diamond

GD • K/SI1 • GIA 2536975423

Certificate GIA 2536975423

Diamond specifications and retailer prices

From $4,883 AUD
As of November 6, 2026
Save $5,171 AUD (51%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $13,046 AUD at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

About this 1.57ct natural oval diamond

This 1.57ct natural oval sits in the one-and-a-half to two 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 2536975423. Listed at 19 retailers as of November 2, 2026, with a 106% 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

1.57
Carat
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2536975423
Dimensions9.22 × 6.50 × 4.08 mm
L/W Ratio1.42
Top View
9.22 mm6.50 mm1.57 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2536975423
Side View
Table 60.0%CrownGirdle: ThickPavilionCulet: NoneDepth 62.8%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $5,548 AUD|Low: $4,883 AUD|High: $10,640 AUD|Avg: $6,457 AUD|-15.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 8$4,883 AUD
Retailer 7$5,033 AUD
Retailer 11$5,138 AUD
Retailer 2$5,398 AUD
Retailer 1$5,548 AUD
Retailer 10$5,851 AUD
Retailer 4$5,858 AUD
Retailer 5$5,932 AUD
Retailer 3$6,383 AUD
Retailer 6$6,433 AUD
Retailer 9$7,050 AUD
Retailer 12$10,054 AUD

19 data points across 12 retailers

19 retailers$4,883 AUD to $10,054 AUD

A
Cheapest Retailer
-
$4,883 AUD
A
Retailer 2
-
$5,033 AUD
View
A
Retailer 3
-
$5,138 AUD
View
B+
Retailer 4
-
$5,398 AUD
View
B+
Retailer 5
-
$5,548 AUD
View
B+
Retailer 6
-
$5,851 AUD
View
Retailer 7
-
$5,858 AUD
View
Price last confirmed 16 days ago
B+
Retailer 8
-
$5,932 AUD
View
Retailer 9
-
$6,383 AUD
View
Price last confirmed 12 days ago
B+
Retailer 10
-
$6,433 AUD
View
Retailer 11
-
$6,734 AUD
View
Price last confirmed 42 days ago
B+
Retailer 12
-
$7,050 AUD
View
Retailer 13
-
$7,770 AUD
View
Price last confirmed 44 days ago
Retailer 14
-
$7,801 AUD
View
Price last confirmed 33 days ago
Retailer 15
-
$8,118 AUD
View
Price last confirmed 38 days ago
Retailer 16
-
$9,000 AUD
View
Price last confirmed 33 days ago
B
Retailer 17
-
$10,054 AUD
View
Retailer 18
-
$11,732 AUD
View
Price last confirmed 41 days ago
Most Expensive
NZ Jewellers
4f2f2fff-6296-4c47-94a1-137b986ca760 · Oct 3
$13,046 AUD
$8,964 USD
View
Price last confirmed 34 days ago
18 more retailers have this diamond
Prices start from $4,883 AUDSave up to $5,171 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
1.57ct Oval
$4,883 AUD