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Oval|Natural|GIA

1.51ct K SI2 Oval Natural Diamond

VG • K/SI2 • GIA 6565197871

Certificate GIA 6565197871

Diamond specifications and retailer prices

From $3,975 AUD
As of November 4, 2026
Save $3,279 AUD (45%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $7,254 AUD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

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 SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6565197871. Listed at 13 retailers as of November 4, 2026, with prices from $3,975 to $7,254, a $3,279 spread on the same certified stone. Wholesale Diamonds Direct lists it at $7,254. 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
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle41.26°
Pavilion angle39.76°
OriginNatural
Grading LabGIA
CertificateGIA 6565197871
Dimensions8.83 × 6.22 × 4.02 mm
L/W Ratio1.42
Culet sizeNone
Top View
8.83 mm6.22 mm1.51 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6565197871
Side View
Table 59.0%Crown 41.26°Girdle: STK-VTKPavilion 39.76°Culet: NoneDepth 64.6%

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 4
Current: $5,515 AUD|Low: $3,975 AUD|High: $7,606 AUD|Avg: $5,076 AUD|-6.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Wholesale Diamonds Direct
November 6, 2026
Retailer 9$3,975 AUD
Retailer 7$4,071 AUD
Retailer 10$4,286 AUD
Retailer 4$4,483 AUD
Retailer 6$4,614 AUD
Retailer 3$4,790 AUD
Retailer 8$5,078 AUD
Retailer 12$5,114 AUD
Retailer 11$5,123 AUD
Retailer 2$5,241 AUD
Retailer 5$5,296 AUD
Retailer 1$5,515 AUD
Wholesale Diamonds Direct$7,254 AUD

25 data points across 13 retailers

13 retailers$3,975 AUD to $7,254 AUD

A
Cheapest Retailer
-
$3,975 AUD
A
Retailer 2
-
$4,071 AUD
View
A
Retailer 3
-
$4,286 AUD
View
Retailer 4
-
$4,483 AUD
View
Price last confirmed 16 days ago
A
Retailer 5
-
$4,614 AUD
View
A
Retailer 6
-
$4,790 AUD
View
B+
Retailer 7
-
$5,078 AUD
View
B+
Retailer 8
-
$5,114 AUD
View
B+
Retailer 9
-
$5,123 AUD
View
B+
Retailer 10
-
$5,241 AUD
View
B+
Retailer 11
-
$5,296 AUD
View
B+
Retailer 12
-
$5,515 AUD
View
Most Expensive
B
Wholesale Diamonds Direct
323846498 · Nov 6
$7,254 AUD
$4,984 USD
View
12 more retailers have this diamond
Prices start from $3,975 AUDSave up to $3,279 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
$3,975 AUD