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Radiant|Natural|GIA

1.20ct K SI1 Radiant Natural Diamond

VG • K/SI1 • GIA 2186430328

Certificate GIA 2186430328

Diamond specifications and retailer prices

From $2,679 SGD
As of November 4, 2026
Save $3,233 SGD (55%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,424 SGD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2186430328. Listed at 14 retailers as of November 4, 2026, with a 121% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.20
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2186430328
Dimensions6.91 × 5.13 × 3.63 mm
L/W Ratio1.35
Culet sizeNone
Top View
6.91 mm5.13 mm1.20 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2186430328
Side View
Table 64.0%CrownGirdle: VTK-VTKPavilionCulet: NoneDepth 70.8%

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: $3,581 SGD|Low: $2,679 SGD|High: $6,297 SGD|Avg: $3,802 SGD|-4.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 8$2,679 SGD
Retailer 9$2,884 SGD
Retailer 2$2,958 SGD
Retailer 11$3,126 SGD
Retailer 3$3,217 SGD
Retailer 4$3,282 SGD
Retailer 1$3,581 SGD
Retailer 6$4,131 SGD
Retailer 5$4,202 SGD
Retailer 10$4,871 SGD
Retailer 7$5,912 SGD

36 data points across 11 retailers

14 retailers$2,679 SGD to $5,912 SGD

B+
Cheapest Retailer
-
$2,679 SGD
B+
Retailer 2
-
$2,884 SGD
View
B+
Retailer 3
-
$2,958 SGD
View
B
Retailer 4
-
$3,126 SGD
View
Retailer 5
-
$3,217 SGD
View
Price last confirmed 40 days ago
Retailer 6
-
$3,217 SGD
View
Price last confirmed 9 days ago
B
Retailer 7
-
$3,282 SGD
View
B
Retailer 8
-
$3,581 SGD
View
Retailer 9
-
$3,713 SGD
View
Price last confirmed 39 days ago
B
Retailer 10
-
$4,131 SGD
View
B
Retailer 11
-
$4,202 SGD
View
B
Retailer 12
-
$4,871 SGD
View
B
Retailer 13
-
$5,912 SGD
View
Most Expensive
NZ Jewellers
0ab44f12-889a-4982-abb7-ee81256cb966 · Sep 28
$7,424 SGD
$5,793 USD
View
Price last confirmed 39 days ago
13 more retailers have this diamond
Prices start from $2,679 SGDSave up to $3,233 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+
1.20ct Radiant
$2,679 SGD