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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 $6,043 AUD
As of November 6, 2026
Save $7,337 AUD (55%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: $13,379 AUD 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 $6,043 to $13,379, a $7,337 spread on the same certified stone. NZ Jewellers lists it at $13,379. 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: $7,728 AUD|Low: $6,372 AUD|High: $12,893 AUD|Avg: $8,473 AUD|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 8$6,372 AUD
Retailer 6$6,746 AUD
Retailer 1$7,728 AUD
Retailer 2$7,760 AUD
Retailer 7$8,064 AUD
Retailer 3$9,000 AUD
Retailer 4$9,760 AUD
Retailer 5$12,707 AUD

37 data points across 8 retailers

29 retailers$6,043 AUD to $13,379 AUD

B+
Cheapest Retailer
-
$6,043 AUD
B+
Retailer 2
-
$6,249 AUD
View
B+
Retailer 3
-
$6,319 AUD
View
B+
Retailer 4
-
$6,372 AUD
View
Final sale: no returns
B+
Retailer 5
-
$6,396 AUD
View
B+
Retailer 6
-
$6,597 AUD
View
B+
Retailer 7
-
$6,746 AUD
View
B+
Retailer 8
-
$6,794 AUD
View
B+
Retailer 9
-
$6,819 AUD
View
B
Retailer 10
-
$7,181 AUD
View
Retailer 11
-
$7,248 AUD
View
Price last confirmed 9 days ago
B
Retailer 12
-
$7,248 AUD
View
B
Retailer 13
-
$7,248 AUD
View
B
Retailer 14
-
$7,372 AUD
View
B
Retailer 15
-
$7,728 AUD
View
B
Retailer 16
-
$7,760 AUD
View
B
Retailer 17
-
$7,898 AUD
View
Retailer 18
-
$8,064 AUD
View
Price last confirmed 29 days ago
B
Retailer 19
-
$8,121 AUD
View
B
Retailer 20
-
$8,121 AUD
View
B
Retailer 21
-
$8,363 AUD
View
B
Retailer 22
-
$8,398 AUD
View
Retailer 23
-
$8,827 AUD
View
Price last confirmed 15 days ago
B
Retailer 24
-
$9,000 AUD
View
B
Retailer 25
-
$9,214 AUD
View
B
Retailer 26
-
$9,760 AUD
View
B
Retailer 27
-
$11,584 AUD
View
B
Retailer 28
-
$12,707 AUD
View
Most Expensive
B
NZ Jewellers
9a27df5b-79d0-4380-aa40-91ee1a47bf2e · Nov 5
$13,379 AUD
$9,193 USD
View
28 more retailers have this diamond
Prices start from $6,043 AUDSave up to $7,337 AUD

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
$6,043 AUD