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Round|Natural|GIA

1.21ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6522585574

Certificate GIA 6522585574

Diamond specifications and retailer prices

From $3,442 SGD
As of November 6, 2026
Save $4,605 SGD (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $8,047 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6522585574. Listed at 19 retailers as of November 5, 2026, with prices from $3,442 to $8,047, a $4,605 spread on the same certified stone. NZ Jewellers lists it at $8,047. 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

1.21
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6522585574
Dimensions6.79 × 6.73 × 4.22 mm
L/W Ratio1.01
Top View
6.79 mm6.73 mm1.21 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6522585574
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.4%

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: $8,047 SGD|Low: $3,412 SGD|High: $8,047 SGD|Avg: $4,972 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 2$3,442 SGD
Retailer 18$3,445 SGD
Retailer 5$4,100 SGD
Retailer 16$4,140 SGD
Retailer 10$4,263 SGD
Retailer 11$4,419 SGD
Retailer 6$4,441 SGD
Retailer 4$4,619 SGD
Retailer 9$4,619 SGD
Retailer 13$4,751 SGD
Retailer 12$4,796 SGD
Retailer 7$4,797 SGD
Retailer 8$4,805 SGD
Retailer 3$5,329 SGD
Retailer 14$5,363 SGD
Retailer 15$5,638 SGD
Retailer 17$7,724 SGD
NZ Jewellers$8,047 SGD

24 data points across 18 retailers

19 retailers$3,442 SGD to $8,047 SGD

A
Cheapest Retailer
-
$3,442 SGD
A
Retailer 2
-
$3,445 SGD
View
B+
Retailer 3
-
$4,100 SGD
View
B+
Retailer 4
-
$4,140 SGD
View
B+
Retailer 5
-
$4,263 SGD
View
Final sale: no returns
B+
Retailer 6
-
$4,419 SGD
View
B+
Retailer 7
-
$4,441 SGD
View
B+
Retailer 8
-
$4,619 SGD
View
Retailer 9
-
$4,619 SGD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$4,751 SGD
View
B+
Retailer 11
-
$4,796 SGD
View
B+
Retailer 12
-
$4,797 SGD
View
B+
Retailer 13
-
$4,805 SGD
View
Retailer 14
-
$5,057 SGD
View
Price last confirmed 29 days ago
B+
Retailer 15
-
$5,329 SGD
View
B+
Retailer 16
-
$5,363 SGD
View
B+
Retailer 17
-
$5,638 SGD
View
B
Retailer 18
-
$7,724 SGD
View
Most Expensive
B
NZ Jewellers
b925d230-40f5-4a38-baa3-40e6d16c4a2c · Nov 5
$8,047 SGD
$6,279 USD
View
18 more retailers have this diamond
Prices start from $3,442 SGDSave up to $4,605 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
1.21ct Round
$3,442 SGD