Round|Natural|GIA

1.40ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6555290859

Certificate GIA 6555290859

Diamond specifications and retailer prices

From $3,565 USD
As of November 1, 2026
Save $4,226 USD (54%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $7,791 USD at NZ Jewellers · As of October 30, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555290859. Listed at 10 retailers as of October 30, 2026, with prices from $3,565 to $7,791, a $4,226 spread on the same certified stone. NZ Jewellers lists it at $7,791. 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
H
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6555290859
Dimensions7.07 × 7.13 × 4.49 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Needle
Top View
7.07 mm7.13 mm1.40 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6555290859
Side View
Table 56.0%Crown 36.5°GirdlePavilion 40.8°Culet: NoneDepth 63.2%

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 1
Current: $7,791 USD|Low: $3,565 USD|High: $8,101 USD|Avg: $5,168 USD|-3.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 8$3,565 USD
Retailer 3$3,784 USD
Retailer 6$4,051 USD
Retailer 9$4,212 USD
Retailer 10$4,212 USD
Retailer 5$4,547 USD
Retailer 7$4,675 USD
Retailer 2$5,039 USD
Retailer 11$5,136 USD
Retailer 4$7,123 USD
NZ Jewellers$7,791 USD

40 data points across 11 retailers

10 retailers$3,565 USD to $7,791 USD

A
Cheapest Retailer
-
$3,565 USD
B+
Retailer 2
-
$4,051 USD
View
B+
Retailer 3
-
$4,212 USD
View
B+
Retailer 4
-
$4,212 USD
View
B+
Retailer 5
-
$4,547 USD
£3,580 GBP
View
B+
Retailer 6
-
$4,675 USD
View
B+
Retailer 7
-
$5,039 USD
€4,799 EUR
View
Retailer 8
-
$5,136 USD
View
Price last confirmed 9 days ago
B
Retailer 9
-
$7,123 USD
£5,609 GBP
View
Most Expensive
B
NZ Jewellers
dbc3a7d8-6409-446f-82da-82474da76b48 · Oct 30
$7,791 USD
View
9 more retailers have this diamond
Prices start from $3,565 USDSave up to $4,226 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
$3,565 USD