Round|Natural|GIA

1.00ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1558936352

Certificate GIA 1558936352

Diamond specifications and retailer prices

From $1,747 USD
₹166,409 INR
As of October 31, 2026
Save $3,599 USD (67%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,347 USD at Quality Diamonds UK · As of October 30, 2026
View at Quality Diamonds UK

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1558936352. Listed at 12 retailers as of October 30, 2026, with prices from $1,747 to $5,347, a $3,599 spread on the same certified stone. Quality Diamonds UK lists it at $5,347. 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

1.00
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1558936352
Dimensions6.35 × 6.40 × 4.01 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.35 mm6.40 mm1.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1558936352
Side View
Table 55.0%CrownGirdle: THN-MEDPavilionCulet: NoneDepth 62.9%

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: Oct 31
Current: $5,347 USD|Low: $1,747 USD|High: $5,347 USD|Avg: $2,652 USD
Quality Diamonds UK
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 2$1,747 USD
Retailer 4$2,155 USD
Retailer 3$2,400 USD
Retailer 10$2,526 USD
Retailer 12$2,710 USD
Retailer 11$2,831 USD
Retailer 6$2,882 USD
Retailer 7$4,329 USD
Retailer 9$4,438 USD
Retailer 5$4,535 USD
Retailer 8$4,640 USD
Quality Diamonds UK$5,347 USD

41 data points across 12 retailers

12 retailers$1,747 USD to $5,347 USD

A
Cheapest Retailer
-
$1,747 USD
₹166,409 INR
Retailer 2
-
$2,155 USD
View
Price last confirmed 13 days ago
B+
Retailer 3
-
$2,400 USD
View
B+
Retailer 4
-
$2,526 USD
View
B+
Retailer 5
-
$2,710 USD
€2,581 EUR
View
B+
Retailer 6
-
$2,831 USD
ZAR 45,730 ZAR
View
B+
Retailer 7
-
$2,882 USD
£2,269 GBP
View
B
Retailer 8
-
$4,329 USD
View
B
Retailer 9
-
$4,438 USD
View
Final sale: no returns
B
Retailer 10
-
$4,535 USD
View
B
Retailer 11
-
$4,640 USD
£3,653 GBP
View
Most Expensive
B
Quality Diamonds UK
133/1A7257153 · Oct 30
$5,347 USD
£4,210 GBP
View
11 more retailers have this diamond
Prices start from $1,747 USDSave up to $3,599 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
1.00ct Round
$1,747 USD