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Round|Natural|GIA

1.00ct K SI2 Round Natural Diamond

VG • K/SI2 • GIA 1289093164

Certificate GIA 1289093164

Diamond specifications and retailer prices

From $2,010 SGD
As of November 6, 2026
Save $4,036 SGD (67%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,047 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 1289093164. Listed at 16 retailers as of November 5, 2026, with prices from $2,010 to $6,047, a $4,036 spread on the same certified stone. NZ Jewellers lists it at $6,047. 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
K
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceFaint
Crown angle33.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1289093164
Dimensions6.44 × 6.35 × 3.83 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Culet sizeNone
Top View
6.44 mm6.35 mm1.00 ctK / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 1289093164
Side View
Table 62.0%Crown 33.5°Girdle: STK-THKPavilion 40.6°Culet: NoneDepth 59.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,047 SGD|Low: $2,010 SGD|High: $6,047 SGD|Avg: $2,868 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 11$2,010 SGD
Retailer 4$2,046 SGD
Retailer 9$2,082 SGD
Retailer 5$2,245 SGD
Retailer 13$2,245 SGD
Retailer 10$2,349 SGD
Retailer 3$2,455 SGD
Retailer 12$2,592 SGD
Retailer 2$2,676 SGD
Retailer 6$2,920 SGD
Retailer 7$3,140 SGD
Retailer 8$4,330 SGD
NZ Jewellers$6,047 SGD

40 data points across 13 retailers

16 retailers$2,010 SGD to $6,047 SGD

B+
Cheapest Retailer
-
$2,010 SGD
B+
Retailer 2
-
$2,021 SGD
View
B+
Retailer 3
-
$2,046 SGD
View
B+
Retailer 4
-
$2,082 SGD
View
B+
Retailer 5
-
$2,108 SGD
View
B+
Retailer 6
-
$2,245 SGD
View
Retailer 7
-
$2,245 SGD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$2,349 SGD
View
B+
Retailer 9
-
$2,455 SGD
View
B
Retailer 10
-
$2,592 SGD
View
B
Retailer 11
-
$2,676 SGD
View
B
Retailer 12
-
$2,920 SGD
View
B
Retailer 13
-
$3,140 SGD
View
B
Retailer 14
-
$3,555 SGD
View
B
Retailer 15
-
$4,330 SGD
View
Most Expensive
C
NZ Jewellers
f59eef37-bd43-4665-92ea-38679c8c9751 · Nov 5
$6,047 SGD
$4,734 USD
View
15 more retailers have this diamond
Prices start from $2,010 SGDSave up to $4,036 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.

B+
1.00ct Round
$2,010 SGD