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Round|Natural|GIA

1.00ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1558936352

Certificate GIA 1558936352

Diamond specifications and retailer prices

From $2,234 SGD
₹166,409 INR
As of October 31, 2026
Save $4,601 SGD (67%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,835 SGD 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 13 retailers as of October 30, 2026, with prices from $2,234 to $6,835, a $4,601 spread on the same certified stone. Quality Diamonds UK lists it at $6,835. 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
Colour
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: $6,835 SGD|Low: $2,233 SGD|High: $6,835 SGD|Avg: $3,408 SGD
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
Retailer 13
October 31, 2026
Retailer 6$2,234 SGD
Retailer 5$2,755 SGD
Retailer 4$3,068 SGD
Retailer 12$3,229 SGD
Retailer 3$3,465 SGD
Retailer 13$3,619 SGD
Retailer 8$3,684 SGD
Retailer 9$5,534 SGD
Retailer 11$5,674 SGD
Retailer 7$5,798 SGD
Retailer 10$5,931 SGD
Retailer 2$6,147 SGD
Quality Diamonds UK$6,835 SGD

41 data points across 13 retailers

13 retailers$2,234 SGD to $6,835 SGD

A
Cheapest Retailer
-
$2,234 SGD
₹166,409 INR
Retailer 2
-
$2,755 SGD
$2,155 USD
View
Price last confirmed 14 days ago
B+
Retailer 3
-
$3,068 SGD
$2,400 USD
View
B+
Retailer 4
-
$3,229 SGD
$2,526 USD
View
B+
Retailer 5
-
$3,465 SGD
€2,581 EUR
View
B+
Retailer 6
-
$3,619 SGD
ZAR 45,730 ZAR
View
B+
Retailer 7
-
$3,684 SGD
£2,269 GBP
View
B
Retailer 8
-
$5,534 SGD
$4,329 USD
View
B
Retailer 9
-
$5,674 SGD
$4,438 USD
View
Final sale: no returns
B
Retailer 10
-
$5,798 SGD
$4,535 USD
View
B
Retailer 11
-
$5,931 SGD
£3,653 GBP
View
Retailer 12
-
$6,147 SGD
$4,808 USD
View
Most Expensive
B
Quality Diamonds UK
133/1A7257153 · Oct 30
$6,835 SGD
£4,210 GBP
View
12 more retailers have this diamond
Prices start from $2,234 SGDSave up to $4,601 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.

A
1.00ct Round
$2,234 SGD