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Round|Natural|GIA

1.00ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 1559987010

Certificate GIA 1559987010

Diamond specifications and retailer prices

From $1,751 USD
As of November 6, 2026
Save $3,670 USD (68%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,421 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1559987010. Listed at 14 retailers as of November 5, 2026, with prices from $1,751 to $5,421, a $3,670 spread on the same certified stone. NZ Jewellers lists it at $5,421. 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
F
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 1559987010
Dimensions6.41 × 6.39 × 4.00 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Indented Natural
Top View
6.41 mm6.39 mm1.00 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559987010
Side View
Table 57.0%Crown 35°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: Nov 6
Current: $5,421 USD|Low: $1,751 USD|High: $5,421 USD|Avg: $2,893 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 2$1,751 USD
Retailer 6$2,125 USD
Retailer 5$2,322 USD
Retailer 7$2,490 USD
Retailer 8$2,539 USD
Retailer 4$2,593 USD
Retailer 12$2,593 USD
Retailer 11$2,640 USD
Retailer 10$2,712 USD
Retailer 13$2,713 USD
Retailer 9$2,737 USD
Retailer 3$4,549 USD
NZ Jewellers$5,421 USD

27 data points across 13 retailers

14 retailers$1,751 USD to $5,421 USD

A
Cheapest Retailer
-
$1,751 USD
A
Retailer 2
-
$2,125 USD
View
A
Retailer 3
-
$2,322 USD
View
A
Retailer 4
-
$2,490 USD
View
A
Retailer 5
-
$2,506 USD
View
A
Retailer 6
-
$2,539 USD
View
A
Retailer 7
-
$2,593 USD
View
Retailer 8
-
$2,593 USD
View
Price last confirmed 8 days ago
A
Retailer 9
-
$2,640 USD
View
A
Retailer 10
-
$2,712 USD
View
B+
Retailer 11
-
$2,713 USD
View
A
Retailer 12
-
$2,737 USD
View
Retailer 13
-
$4,549 USD
View
Price last confirmed 11 days ago
Most Expensive
B
NZ Jewellers
6264d278-0ac1-4cc1-ba5e-a9c4b8e8aaaa · Nov 5
$5,421 USD
View
13 more retailers have this diamond
Prices start from $1,751 USDSave up to $3,670 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
$1,751 USD