CaratHunter
Plans
Oval|Natural|GIA

1.51ct K SI1 Oval Natural Diamond

VG • K/SI1 • GIA 2556943966

Certificate GIA 2556943966

Diamond specifications and retailer prices

From $3,844 AUD
As of November 6, 2026
Save $5,369 AUD (58%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $9,213 AUD at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2556943966. Listed at 19 retailers as of November 2, 2026, with prices from $3,844 to $9,213, a $5,369 spread on the same certified stone. NZ Jewellers lists it at $9,213. 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

1.51
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle35.7°
OriginNatural
Grading LabGIA
CertificateGIA 2556943966
Dimensions9.28 × 6.49 × 3.87 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizeNone
Top View
9.28 mm6.49 mm1.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556943966
Side View
Table 59.0%Crown 35.8°Girdle: MED-THKPavilion 35.7°Culet: NoneDepth 59.7%

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: $9,213 AUD|Low: $3,749 AUD|High: $9,213 AUD|Avg: $5,149 AUD|+2.5%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 5, 2026
Retailer 9$3,844 AUD
Retailer 3$4,005 AUD
Retailer 11$4,068 AUD
Retailer 12$4,200 AUD
Retailer 18$4,241 AUD
Retailer 7$4,416 AUD
Retailer 8$4,422 AUD
Retailer 5$4,635 AUD
Retailer 10$4,673 AUD
Retailer 17$4,791 AUD
Retailer 14$4,913 AUD
Retailer 4$5,145 AUD
Retailer 15$5,148 AUD
Retailer 2$5,472 AUD
Retailer 6$5,528 AUD
Retailer 16$5,813 AUD
Retailer 19$6,500 AUD
Retailer 13$8,820 AUD
NZ Jewellers$9,213 AUD

26 data points across 19 retailers

19 retailers$3,844 AUD to $9,213 AUD

A
Cheapest Retailer
-
$3,844 AUD
A
Retailer 2
-
$4,005 AUD
View
Retailer 3
-
$4,068 AUD
View
Price last confirmed 16 days ago
A
Retailer 4
-
$4,200 AUD
View
A
Retailer 5
-
$4,241 AUD
View
A
Retailer 6
-
$4,416 AUD
View
B+
Retailer 7
-
$4,422 AUD
View
Final sale: no returns
A
Retailer 8
-
$4,635 AUD
View
Retailer 9
-
$4,673 AUD
View
Price last confirmed 8 days ago
A
Retailer 10
-
$4,791 AUD
View
A
Retailer 11
-
$4,913 AUD
View
A
Retailer 12
-
$5,145 AUD
View
A
Retailer 13
-
$5,148 AUD
View
B+
Retailer 14
-
$5,472 AUD
View
B+
Retailer 15
-
$5,528 AUD
View
B+
Retailer 16
-
$5,813 AUD
View
B+
Retailer 17
-
$6,500 AUD
View
B
Retailer 18
-
$8,820 AUD
View
Most Expensive
B
NZ Jewellers
de770bf7-1717-4e9e-b9a1-0ad4fe41ab3b · Nov 2
$9,213 AUD
$6,330 USD
View
18 more retailers have this diamond
Prices start from $3,844 AUDSave up to $5,369 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
1.51ct Oval
$3,844 AUD