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Oval|Natural|GIA

1.40ct K SI1 Oval Natural Diamond

VG • K/SI1 • GIA 6515820915

Certificate GIA 6515820915

Diamond specifications and retailer prices

From $3,148 AUD
As of November 6, 2026
Save $5,666 AUD (64%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $8,814 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.4ct natural oval diamond

This 1.4ct 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 6515820915. Listed at 18 retailers as of November 5, 2026, with prices from $3,148 to $8,814, a $5,666 spread on the same certified stone. NZ Jewellers lists it at $8,814. 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

1.40
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6515820915
Dimensions8.57 × 6.09 × 3.88 mm
L/W Ratio1.41
Top View
8.57 mm6.09 mm1.40 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6515820915
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.8%

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 6
Current: $3,794 AUD|Low: $3,110 AUD|High: $7,088 AUD|Avg: $4,334 AUD|+5.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9$3,148 AUD
Retailer 2$3,775 AUD
Retailer 1$3,794 AUD
Retailer 3$4,090 AUD
Retailer 10$4,126 AUD
Retailer 4$4,366 AUD
Retailer 7$4,462 AUD
Retailer 5$4,908 AUD
Retailer 6$5,145 AUD
Retailer 8$7,031 AUD

38 data points across 10 retailers

18 retailers$3,148 AUD to $8,814 AUD

A
Cheapest Retailer
-
$3,148 AUD
B+
Retailer 2
-
$3,775 AUD
View
B+
Retailer 3
-
$3,794 AUD
View
B+
Retailer 4
-
$4,037 AUD
View
B+
Retailer 5
-
$4,090 AUD
View
B+
Retailer 6
-
$4,126 AUD
View
Retailer 7
-
$4,215 AUD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$4,215 AUD
View
B+
Retailer 9
-
$4,366 AUD
View
B+
Retailer 10
-
$4,378 AUD
View
B+
Retailer 11
-
$4,422 AUD
View
B+
Retailer 12
-
$4,462 AUD
View
B+
Retailer 13
-
$4,630 AUD
View
B+
Retailer 14
-
$4,864 AUD
View
B+
Retailer 15
-
$4,908 AUD
View
B
Retailer 16
-
$5,145 AUD
View
B
Retailer 17
-
$7,031 AUD
View
Most Expensive
C
NZ Jewellers
16f525b1-6f1a-4813-a1be-0a19f1240e1c · Nov 5
$8,814 AUD
$6,056 USD
View
17 more retailers have this diamond
Prices start from $3,148 AUDSave up to $5,666 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
1.40ct Oval
$3,148 AUD