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Round|Natural|GIA

1.00ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 7566188827

Certificate GIA 7566188827

Diamond specifications and retailer prices

From $1,558 USD
SGD 2,106 SGD
As of October 31, 2026
Save $1,467 USD (48%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $3,026 USD at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7566188827. Listed at 8 retailers as of October 26, 2026, with prices from $1,558 to $3,026, a $1,467 spread on the same certified stone. Wholesale Diamonds Direct lists it at $3,026. 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
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 7566188827
Dimensions6.37 × 6.41 × 4.00 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.37 mm6.41 mm1.00 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7566188827
Side View
Table 56.0%Crown 34°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.5%

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: $2,597 USD|Low: $1,558 USD|High: $4,039 USD|Avg: $2,520 USD|-15.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Wholesale Diamonds Direct
October 30, 2026
Retailer 4$1,558 USD
Retailer 2$1,819 USD
Retailer 6$1,998 USD
Retailer 3$2,343 USD
Retailer 5$2,363 USD
Retailer 1$2,597 USD
Retailer 7$2,797 USD
Wholesale Diamonds Direct$3,026 USD

30 data points across 8 retailers

8 retailers$1,558 USD to $3,026 USD

A
Cheapest Retailer
-
$1,558 USD
SGD 2,106 SGD
A
Retailer 2
-
$1,819 USD
View
A
Retailer 3
-
$1,998 USD
SGD 2,700 SGD
View
A
Retailer 4
-
$2,343 USD
£1,845 GBP
View
A
Retailer 5
-
$2,363 USD
View
B+
Retailer 6
-
$2,597 USD
€2,473 EUR
View
B+
Retailer 7
-
$2,797 USD
View
Most Expensive
B+
Wholesale Diamonds Direct
611346686 · Oct 26
$3,026 USD
View
7 more retailers have this diamond
Prices start from $1,558 USDSave up to $1,467 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
$1,558 USD