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Round|Natural|GIA

1.00ct F SI1 Round Natural Diamond

VG • F/SI1 • GIA 2556896081

Certificate GIA 2556896081

Diamond specifications and retailer prices

From $2,411 SGD
As of November 5, 2026
Save $1,470 SGD (38%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $6,304 SGD at NZ Jewellers · As of October 20, 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 very-good cut grade and certified by GIA 2556896081. Listed at 23 retailers as of November 5, 2026, with a 61% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle38.5°
Pavilion angle39.8°
OriginNatural
Grading LabGIA
CertificateGIA 2556896081
Dimensions6.13 × 6.21 × 4.01 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.13 mm6.21 mm1.00 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2556896081
Side View
Table 57.0%Crown 38.5°Girdle: MED-THKPavilion 39.8°Culet: NoneDepth 64.9%

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: Nov 5
Current: $6,304 SGD|Low: $2,215 SGD|High: $6,718 SGD|Avg: $3,558 SGD|-6.2%
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
Retailer 19
Retailer 20
November 6, 2026
Retailer 7$2,285 SGD
Retailer 4$2,411 SGD
Retailer 2$2,598 SGD
Retailer 5$2,654 SGD
Retailer 19$2,798 SGD
Retailer 16$2,890 SGD
Retailer 8$3,016 SGD
Retailer 14$3,037 SGD
Retailer 10$3,117 SGD
Retailer 6$3,319 SGD
Retailer 20$3,319 SGD
Retailer 17$3,339 SGD
Retailer 15$3,435 SGD
Retailer 11$3,480 SGD
Retailer 12$3,600 SGD
Retailer 18$3,699 SGD
Retailer 3$3,873 SGD
Retailer 13$3,881 SGD
Retailer 9$5,311 SGD
NZ Jewellers$6,304 SGD

29 data points across 20 retailers

23 retailers$2,411 SGD to $3,881 SGD

Retailer 1
-
$2,285 SGD
Price last confirmed 18 days ago
A
Retailer 2
-
$2,411 SGD
View
A
Retailer 3
-
$2,598 SGD
View
A
Retailer 4
-
$2,654 SGD
View
Final sale: no returns
B+
Retailer 5
-
$2,798 SGD
View
A
Retailer 6
-
$2,890 SGD
View
Retailer 7
-
$3,016 SGD
View
Price last confirmed 22 days ago
Retailer 8
-
$3,016 SGD
View
Price last confirmed 18 days ago
A
Retailer 9
-
$3,037 SGD
View
Retailer 10
-
$3,117 SGD
View
Price last confirmed 17 days ago
Retailer 11
-
$3,154 SGD
View
Price last confirmed 23 days ago
B+
Retailer 12
-
$3,213 SGD
View
B+
Retailer 13
-
$3,319 SGD
View
B+
Retailer 14
-
$3,319 SGD
View
B+
Retailer 15
-
$3,339 SGD
View
B+
Retailer 16
-
$3,435 SGD
View
Retailer 17
-
$3,480 SGD
View
Price last confirmed 17 days ago
Retailer 18
-
$3,600 SGD
View
Price last confirmed 31 days ago
B+
Retailer 19
-
$3,699 SGD
View
B+
Retailer 20
-
$3,873 SGD
View
B+
Retailer 21
-
$3,881 SGD
View
Retailer 22
-
$5,311 SGD
View
Price last confirmed 19 days ago
Most Expensive
NZ Jewellers
52f2d7f9-d700-44ed-818a-b4ad071c95b0 · Oct 20
$6,304 SGD
$4,919 USD
View
Price last confirmed 17 days ago
22 more retailers have this diamond
Prices start from $2,411 SGDSave up to $1,470 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
$2,411 SGD