Round|Natural|GIA

1.01ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2566195319

Certificate GIA 2566195319

Diamond specifications and retailer prices

From $1,936 USD
SGD 2,616 SGD
As of October 31, 2026
Save $1,331 USD (41%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,266 USD at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

About this 1.01ct natural round diamond

This 1.01ct 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 2566195319. Listed at 11 retailers as of October 26, 2026, with prices from $1,936 to $3,266, a $1,331 spread on the same certified stone. Wholesale Diamonds Direct lists it at $3,266. 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

1.01
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2566195319
Dimensions6.41 × 3.98 × 3.98 mm
L/W Ratio1.61
Culet sizeNone
Top View
6.41 mm3.98 mm1.01 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2566195319
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 61.9%

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: $2,521 USD|Low: $1,936 USD|High: $3,967 USD|Avg: $2,519 USD|-19.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Wholesale Diamonds Direct
October 31, 2026
Retailer 9$1,936 USD
Retailer 6$1,960 USD
Retailer 3$1,980 USD
Retailer 7$2,170 USD
Retailer 2$2,173 USD
Retailer 5$2,177 USD
Retailer 1$2,521 USD
Retailer 10$2,532 USD
Retailer 4$2,802 USD
Retailer 8$3,043 USD
Wholesale Diamonds Direct$3,266 USD

31 data points across 11 retailers

11 retailers$1,936 USD to $3,266 USD

A
Cheapest Retailer
-
$1,936 USD
SGD 2,616 SGD
A
Retailer 2
-
$1,960 USD
View
A
Retailer 3
-
$1,980 USD
View
A
Retailer 4
-
$2,170 USD
View
A
Retailer 5
-
$2,173 USD
SGD 2,936 SGD
View
A
Retailer 6
-
$2,177 USD
£1,714 GBP
View
B+
Retailer 7
-
$2,521 USD
£1,985 GBP
View
B+
Retailer 8
-
$2,532 USD
View
B+
Retailer 9
-
$2,802 USD
€2,669 EUR
View
B+
Retailer 10
-
$3,043 USD
View
Most Expensive
B
Wholesale Diamonds Direct
593385792 · Oct 26
$3,266 USD
View
10 more retailers have this diamond
Prices start from $1,936 USDSave up to $1,331 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
1.01ct Round
$1,936 USD