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Oval|Natural|GIA

1.40ct K SI1 Oval Natural Diamond

ID • K/SI1 • GIA 5553967650

Certificate GIA 5553967650

Diamond specifications and retailer prices

From $2,115 USD
As of November 6, 2026
Save $2,726 USD (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,058 USD at NZ Jewellers · As of September 30, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5553967650. Listed at 16 retailers as of November 4, 2026, with a 129% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.40
Carat
K
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5553967650
Dimensions8.87 × 6.31 × 3.67 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Knot, Indented Natural, Needle, Natural
Top View
8.87 mm6.31 mm1.40 ctK / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5553967650
Side View
Table 58.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 58.1%

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: $2,115 USD|Low: $2,115 USD|High: $4,996 USD|Avg: $3,000 USD|-4.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 1$2,115 USD
Retailer 4$2,430 USD
Retailer 10$2,475 USD
Retailer 11$2,553 USD
Retailer 3$2,557 USD
Retailer 5$2,687 USD
Retailer 2$2,720 USD
Retailer 12$2,912 USD
Retailer 7$2,932 USD
Retailer 6$3,224 USD
Retailer 8$3,381 USD
Retailer 9$4,841 USD

23 data points across 12 retailers

16 retailers$2,115 USD to $4,841 USD

A
Cheapest Retailer
-
$2,115 USD
A
Retailer 2
-
$2,430 USD
View
A
Retailer 3
-
$2,475 USD
View
A
Retailer 4
-
$2,553 USD
View
B+
Retailer 5
-
$2,557 USD
View
Final sale: no returns
A
Retailer 6
-
$2,687 USD
View
A
Retailer 7
-
$2,720 USD
View
Retailer 8
-
$2,821 USD
View
Price last confirmed 30 days ago
B+
Retailer 9
-
$2,912 USD
View
B+
Retailer 10
-
$2,932 USD
View
Retailer 11
-
$3,009 USD
View
Price last confirmed 38 days ago
B+
Retailer 12
-
$3,224 USD
View
Retailer 13
-
$3,255 USD
View
Price last confirmed 30 days ago
B+
Retailer 14
-
$3,381 USD
View
B
Retailer 15
-
$4,841 USD
View
Most Expensive
NZ Jewellers
d546049e-de6e-41fb-9a1f-20a641474722 · Sep 30
$6,058 USD
View
Price last confirmed 37 days ago
15 more retailers have this diamond
Prices start from $2,115 USDSave up to $2,726 USD

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
$2,115 USD