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Radiant|Natural|GIA

1.21ct G SI1 Radiant Natural Diamond

VG • G/SI1 • GIA 2437946155

Certificate GIA 2437946155

Diamond specifications and retailer prices

From $4,274 SGD
As of November 4, 2026
Save $2,041 SGD (32%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $6,315 SGD at 77 Diamonds · As of November 7, 2026
View at 77 Diamonds

About this 1.21ct natural radiant diamond

This 1.21ct natural radiant sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2437946155. Listed at 6 retailers as of November 4, 2026, with prices from $4,274 to $6,315, a $2,041 spread on the same certified stone. 77 Diamonds lists it at $6,315. 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

1.21
Carat
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle46.26°
Pavilion angle29.17°
OriginNatural
Grading LabGIA
CertificateGIA 2437946155
Dimensions6.83 × 5.56 × 3.40 mm
L/W Ratio1.23
Top View
6.83 mm5.56 mm1.21 ctG / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2437946155
Side View
Table 73.0%Crown 46.26°Girdle: ThickPavilion 29.17°Culet: NoneDepth 61.2%

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 4
Current: $6,315 SGD|Low: $4,020 SGD|High: $6,392 SGD|Avg: $4,732 SGD|+1.1%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 7, 2026
Retailer 5$4,274 SGD
Retailer 3$4,307 SGD
Retailer 4$4,379 SGD
Retailer 2$4,423 SGD
77 Diamonds$6,315 SGD

39 data points across 5 retailers

6 retailers$4,274 SGD to $6,315 SGD

B+
Cheapest Retailer
-
$4,274 SGD
B+
Retailer 2
-
$4,307 SGD
View
B+
Retailer 3
-
$4,379 SGD
View
B+
Retailer 4
-
$4,423 SGD
View
Final sale: no returns
B
Retailer 5
-
$4,611 SGD
View
Most Expensive
B
77 Diamonds
RADZXCYGQPAM · Nov 7
$6,315 SGD
£3,880 GBP
View
5 more retailers have this diamond
Prices start from $4,274 SGDSave up to $2,041 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
$4,274 SGD