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Oval|Natural|GIA

1.40ct K SI1 Oval Natural Diamond

VG • K/SI1 • GIA 6233618512

Certificate GIA 6233618512

Diamond specifications and retailer prices

From $4,325 AUD
As of November 6, 2026
Save $5,267 AUD (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $9,994 AUD at NZ Jewellers · As of October 20, 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 6233618512. Listed at 16 retailers as of November 2, 2026, with a 122% 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

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

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6233618512
Dimensions9.13 × 5.85 × 3.89 mm
L/W Ratio1.56
Top View
9.13 mm5.85 mm1.40 ctK / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6233618512
Side View
Table 56.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $7,002 AUD|Low: $4,325 AUD|High: $9,709 AUD|Avg: $5,949 AUD|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 8$4,325 AUD
Retailer 6$4,504 AUD
Retailer 9$4,614 AUD
Retailer 7$5,197 AUD
Retailer 3$5,512 AUD
Retailer 2$5,810 AUD
Retailer 4$6,490 AUD
Retailer 1$7,002 AUD
Retailer 5$9,593 AUD

44 data points across 9 retailers

16 retailers$4,325 AUD to $9,593 AUD

B+
Cheapest Retailer
-
$4,325 AUD
B+
Retailer 2
-
$4,407 AUD
View
Retailer 3
-
$4,504 AUD
View
Price last confirmed 19 days ago
B+
Retailer 4
-
$4,614 AUD
View
Retailer 5
-
$4,711 AUD
View
Price last confirmed 7 days ago
B
Retailer 6
-
$4,999 AUD
View
Retailer 7
-
$5,197 AUD
View
Price last confirmed 21 days ago
Retailer 8
-
$5,197 AUD
View
Price last confirmed 17 days ago
Retailer 9
-
$5,397 AUD
View
Price last confirmed 21 days ago
B
Retailer 10
-
$5,512 AUD
View
B
Retailer 11
-
$5,810 AUD
View
Retailer 12
-
$5,996 AUD
View
Price last confirmed 16 days ago
B
Retailer 13
-
$6,490 AUD
View
B
Retailer 14
-
$7,002 AUD
View
C
Retailer 15
-
$9,593 AUD
View
Most Expensive
NZ Jewellers
fde3e65b-3323-4e5d-9e17-3087feaef759 · Oct 20
$9,994 AUD
$6,867 USD
View
Price last confirmed 16 days ago
15 more retailers have this diamond
Prices start from $4,325 AUDSave up to $5,267 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.

B+
1.40ct Oval
$4,325 AUD