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Round|Natural|GIA

1.00ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 1565410290

Certificate GIA 1565410290

Diamond specifications and retailer prices

From $3,084 SGD
As of November 6, 2026
Save $4,026 SGD (57%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $7,109 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1565410290. Listed at 24 retailers as of November 5, 2026, with prices from $3,084 to $7,109, a $4,026 spread on the same certified stone. NZ Jewellers lists it at $7,109. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1565410290
Dimensions6.39 × 6.41 × 3.92 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
6.39 mm6.41 mm1.00 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1565410290
Side View
Table 60.0%Crown 35°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $7,109 SGD|Low: $3,050 SGD|High: $7,109 SGD|Avg: $4,635 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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 3$3,084 SGD
Retailer 2$3,195 SGD
Retailer 15$3,585 SGD
Retailer 17$3,729 SGD
Retailer 10$3,767 SGD
Retailer 4$3,774 SGD
Retailer 11$3,905 SGD
Retailer 5$4,081 SGD
Retailer 7$4,081 SGD
Retailer 13$4,196 SGD
Retailer 6$4,238 SGD
Retailer 12$4,277 SGD
Retailer 9$4,709 SGD
Retailer 16$4,746 SGD
Retailer 14$4,980 SGD
Retailer 8$6,795 SGD
Retailer 18$6,825 SGD
NZ Jewellers$7,109 SGD

21 data points across 18 retailers

24 retailers$3,084 SGD to $7,109 SGD

A
Cheapest Retailer
-
$3,084 SGD
A
Retailer 2
-
$3,195 SGD
View
A
Retailer 3
-
$3,585 SGD
View
B+
Retailer 4
-
$3,656 SGD
View
B+
Retailer 5
-
$3,723 SGD
View
B+
Retailer 6
-
$3,729 SGD
View
B+
Retailer 7
-
$3,767 SGD
View
Final sale: no returns
B+
Retailer 8
-
$3,774 SGD
View
B+
Retailer 9
-
$3,774 SGD
View
B+
Retailer 10
-
$3,905 SGD
View
B+
Retailer 11
-
$4,081 SGD
View
Retailer 12
-
$4,081 SGD
View
Price last confirmed 9 days ago
B+
Retailer 13
-
$4,127 SGD
View
B+
Retailer 14
-
$4,196 SGD
View
B+
Retailer 15
-
$4,238 SGD
View
B+
Retailer 16
-
$4,264 SGD
View
B+
Retailer 17
-
$4,277 SGD
View
Retailer 18
-
$4,375 SGD
View
Price last confirmed 34 days ago
B+
Retailer 19
-
$4,709 SGD
View
B+
Retailer 20
-
$4,746 SGD
View
B+
Retailer 21
-
$4,980 SGD
View
Retailer 22
-
$6,795 SGD
View
Price last confirmed 10 days ago
B
Retailer 23
-
$6,825 SGD
View
Most Expensive
B
NZ Jewellers
825c2c48-2507-4220-9faf-f08f54ee642f · Nov 5
$7,109 SGD
$5,547 USD
View
23 more retailers have this diamond
Prices start from $3,084 SGDSave up to $4,026 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
$3,084 SGD