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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 $3,809 SGD
As of November 6, 2026
Save $4,638 SGD (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $8,801 SGD 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: $6,166 SGD|Low: $3,809 SGD|High: $8,550 SGD|Avg: $5,239 SGD|+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$3,809 SGD
Retailer 6$3,967 SGD
Retailer 9$4,063 SGD
Retailer 7$4,577 SGD
Retailer 3$4,853 SGD
Retailer 2$5,116 SGD
Retailer 4$5,715 SGD
Retailer 1$6,166 SGD
Retailer 5$8,447 SGD

44 data points across 9 retailers

16 retailers$3,809 SGD to $8,447 SGD

B+
Cheapest Retailer
-
$3,809 SGD
B+
Retailer 2
-
$3,881 SGD
View
Retailer 3
-
$3,967 SGD
View
Price last confirmed 19 days ago
B+
Retailer 4
-
$4,063 SGD
View
Retailer 5
-
$4,149 SGD
View
Price last confirmed 7 days ago
B
Retailer 6
-
$4,402 SGD
View
Retailer 7
-
$4,577 SGD
View
Price last confirmed 21 days ago
Retailer 8
-
$4,577 SGD
View
Price last confirmed 17 days ago
Retailer 9
-
$4,752 SGD
View
Price last confirmed 21 days ago
B
Retailer 10
-
$4,853 SGD
View
B
Retailer 11
-
$5,116 SGD
View
Retailer 12
-
$5,280 SGD
View
Price last confirmed 16 days ago
B
Retailer 13
-
$5,715 SGD
View
B
Retailer 14
-
$6,166 SGD
View
C
Retailer 15
-
$8,447 SGD
View
Most Expensive
NZ Jewellers
fde3e65b-3323-4e5d-9e17-3087feaef759 · Oct 20
$8,801 SGD
$6,867 USD
View
Price last confirmed 16 days ago
15 more retailers have this diamond
Prices start from $3,809 SGDSave up to $4,638 SGD

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
$3,809 SGD