Round|Natural|GIA

1.40ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2554704098

Certificate GIA 2554704098

Diamond specifications and retailer prices

From $3,031 USD
As of November 6, 2026
Save $2,252 USD (43%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,816 USD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.4ct natural round diamond

This 1.4ct natural round 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 and certified by GIA 2554704098. Listed at 14 retailers as of November 4, 2026, with a 74% 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2554704098
Dimensions7.12 × 7.08 × 4.45 mm
L/W Ratio1.01
Star length55%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Feather, Crystal, Needle
Top View
7.12 mm7.08 mm1.40 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554704098
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.7%

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: $3,031 USD|Low: $3,029 USD|High: $5,650 USD|Avg: $3,822 USD|-6.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 1$3,031 USD
Retailer 6$3,170 USD
Retailer 2$3,257 USD
Retailer 3$3,680 USD
Retailer 4$3,866 USD
Retailer 5$5,283 USD

37 data points across 6 retailers

14 retailers$3,031 USD to $5,283 USD

A
Cheapest Retailer
-
$3,031 USD
B+
Retailer 2
-
$3,170 USD
View
B+
Retailer 3
-
$3,257 USD
View
Retailer 4
-
$3,338 USD
View
Price last confirmed 55 days ago
Retailer 5
-
$3,338 USD
View
Price last confirmed 29 days ago
Retailer 6
-
$3,338 USD
View
Price last confirmed 29 days ago
Retailer 7
-
$3,466 USD
View
Price last confirmed 38 days ago
B+
Retailer 8
-
$3,680 USD
View
Retailer 9
-
$3,852 USD
View
Price last confirmed 60 days ago
Retailer 10
-
$3,852 USD
View
Price last confirmed 38 days ago
B
Retailer 11
-
$3,866 USD
View
B
Retailer 12
-
$5,283 USD
View
Retailer 13
-
$5,816 USD
View
Price last confirmed 55 days ago
Most Expensive
NZ Jewellers
a251de1d-0ddd-4545-bd43-6f2f4acb7a4b · Sep 28
$5,816 USD
View
Price last confirmed 39 days ago
13 more retailers have this diamond
Prices start from $3,031 USDSave up to $2,252 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 Round
$3,031 USD