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Round|Natural|GIA

1.00ct H SI2 Round Natural Diamond

VG • H/SI2 • GIA 6412359992

Certificate GIA 6412359992

Diamond specifications and retailer prices

From $2,491 SGD
As of October 31, 2026
Save $4,665 SGD (65%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $7,155 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 6412359992. Listed at 19 retailers as of October 31, 2026, with prices from $2,491 to $7,155, a $4,665 spread on the same certified stone. NZ Jewellers lists it at $7,155. 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
H
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle40.4°
OriginNatural
Grading LabGIA
CertificateGIA 6412359992
Dimensions6.25 × 6.16 × 4.01 mm
L/W Ratio1.01
Top View
6.25 mm6.16 mm1.00 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6412359992
Side View
Table 58.0%Crown 38°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 64.7%

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: Oct 31
Current: $3,184 SGD|Low: $2,484 SGD|High: $6,068 SGD|Avg: $3,558 SGD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$2,491 SGD
Retailer 8$2,501 SGD
Retailer 9$3,159 SGD
Retailer 6$3,166 SGD
Retailer 1$3,184 SGD
Retailer 2$3,486 SGD
Retailer 3$3,601 SGD
Retailer 5$3,870 SGD
Retailer 4$5,980 SGD

33 data points across 9 retailers

19 retailers$2,491 SGD to $7,155 SGD

A
Cheapest Retailer
-
$2,491 SGD
A
Retailer 2
-
$2,501 SGD
View
B+
Retailer 3
-
$3,027 SGD
View
B+
Retailer 4
-
$3,159 SGD
View
Final sale: no returns
B+
Retailer 5
-
$3,166 SGD
View
B+
Retailer 6
-
$3,184 SGD
View
Retailer 7
-
$3,241 SGD
View
Price last confirmed 109 days ago
Retailer 8
-
$3,423 SGD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$3,423 SGD
View
B+
Retailer 10
-
$3,486 SGD
View
B+
Retailer 11
-
$3,555 SGD
View
B+
Retailer 12
-
$3,601 SGD
View
B+
Retailer 13
-
$3,602 SGD
View
B
Retailer 14
-
$3,870 SGD
View
B
Retailer 15
-
$3,949 SGD
View
B
Retailer 16
-
$4,789 SGD
View
B
Retailer 17
-
$5,980 SGD
View
C
Retailer 18
-
$6,540 SGD
View
Most Expensive
C
NZ Jewellers
9b80595b-a9cd-4fb4-99e6-9398ee5f40ac · Nov 5
$7,155 SGD
$5,602 USD
View
18 more retailers have this diamond
Prices start from $2,491 SGDSave up to $4,665 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
$2,491 SGD