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Radiant|Natural|GIA

1.21ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 1443103827

Certificate GIA 1443103827

Diamond specifications and retailer prices

From $5,321 SGD
As of November 6, 2026
Save $6,461 SGD (55%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: $11,782 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural radiant diamond

This 1.21ct natural radiant sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1443103827. Listed at 29 retailers as of November 5, 2026, with prices from $5,321 to $11,782, a $6,461 spread on the same certified stone. NZ Jewellers lists it at $11,782. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1443103827
Dimensions6.70 × 5.35 × 3.73 mm
L/W Ratio1.25
Culet sizeNone
Top View
6.70 mm5.35 mm1.21 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1443103827
Side View
Table 66.0%CrownGirdle: ThickPavilionCulet: NoneDepth 69.6%

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: $6,805 SGD|Low: $5,611 SGD|High: $11,354 SGD|Avg: $7,461 SGD|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 8$5,611 SGD
Retailer 6$5,940 SGD
Retailer 1$6,805 SGD
Retailer 2$6,833 SGD
Retailer 7$7,101 SGD
Retailer 3$7,925 SGD
Retailer 4$8,594 SGD
Retailer 5$11,190 SGD

37 data points across 8 retailers

29 retailers$5,321 SGD to $11,782 SGD

B+
Cheapest Retailer
-
$5,321 SGD
B+
Retailer 2
-
$5,503 SGD
View
B+
Retailer 3
-
$5,565 SGD
View
B+
Retailer 4
-
$5,611 SGD
View
Final sale: no returns
B+
Retailer 5
-
$5,633 SGD
View
B+
Retailer 6
-
$5,809 SGD
View
B+
Retailer 7
-
$5,940 SGD
View
B+
Retailer 8
-
$5,983 SGD
View
B+
Retailer 9
-
$6,004 SGD
View
B
Retailer 10
-
$6,323 SGD
View
Retailer 11
-
$6,382 SGD
View
Price last confirmed 9 days ago
B
Retailer 12
-
$6,382 SGD
View
B
Retailer 13
-
$6,382 SGD
View
B
Retailer 14
-
$6,491 SGD
View
B
Retailer 15
-
$6,805 SGD
View
B
Retailer 16
-
$6,833 SGD
View
B
Retailer 17
-
$6,955 SGD
View
Retailer 18
-
$7,101 SGD
View
Price last confirmed 29 days ago
B
Retailer 19
-
$7,151 SGD
View
B
Retailer 20
-
$7,151 SGD
View
B
Retailer 21
-
$7,364 SGD
View
B
Retailer 22
-
$7,395 SGD
View
Retailer 23
-
$7,773 SGD
View
Price last confirmed 15 days ago
B
Retailer 24
-
$7,925 SGD
View
B
Retailer 25
-
$8,114 SGD
View
B
Retailer 26
-
$8,594 SGD
View
B
Retailer 27
-
$10,200 SGD
View
B
Retailer 28
-
$11,190 SGD
View
Most Expensive
B
NZ Jewellers
9a27df5b-79d0-4380-aa40-91ee1a47bf2e · Nov 5
$11,782 SGD
$9,193 USD
View
28 more retailers have this diamond
Prices start from $5,321 SGDSave up to $6,461 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+
1.21ct Radiant
$5,321 SGD