CaratHunter
Plans
Round|Natural|GIA

1.00ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 1559987010

Certificate GIA 1559987010

Diamond specifications and retailer prices

From $2,244 SGD
As of November 6, 2026
Save $4,703 SGD (68%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,948 SGD 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 $2,244 to $6,948, a $4,703 spread on the same certified stone. NZ Jewellers lists it at $6,948. 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
Colour
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: $6,948 SGD|Low: $2,244 SGD|High: $6,948 SGD|Avg: $3,784 SGD
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 7$2,244 SGD
Retailer 6$2,721 SGD
Retailer 8$2,723 SGD
Retailer 2$3,151 SGD
Retailer 9$3,191 SGD
Retailer 10$3,254 SGD
Retailer 3$3,323 SGD
Retailer 5$3,323 SGD
Retailer 13$3,383 SGD
Retailer 12$3,476 SGD
Retailer 11$3,508 SGD
Retailer 4$5,830 SGD
NZ Jewellers$6,948 SGD

27 data points across 13 retailers

14 retailers$2,244 SGD to $6,948 SGD

A
Cheapest Retailer
-
$2,244 SGD
A
Retailer 2
-
$2,721 SGD
View
A
Retailer 3
-
$2,723 SGD
View
A
Retailer 4
-
$3,151 SGD
View
A
Retailer 5
-
$3,191 SGD
View
A
Retailer 6
-
$3,212 SGD
View
A
Retailer 7
-
$3,254 SGD
View
A
Retailer 8
-
$3,323 SGD
View
Retailer 9
-
$3,323 SGD
View
Price last confirmed 8 days ago
A
Retailer 10
-
$3,383 SGD
View
A
Retailer 11
-
$3,476 SGD
View
A
Retailer 12
-
$3,508 SGD
View
Retailer 13
-
$5,830 SGD
View
Price last confirmed 11 days ago
Most Expensive
B
NZ Jewellers
6264d278-0ac1-4cc1-ba5e-a9c4b8e8aaaa · Nov 5
$6,948 SGD
$5,421 USD
View
13 more retailers have this diamond
Prices start from $2,244 SGDSave up to $4,703 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
$2,244 SGD