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Radiant|Natural|GIA

1.20ct F SI1 Radiant Natural Diamond

GD • F/SI1 • GIA 6552511433

Certificate GIA 6552511433

Diamond specifications and retailer prices

From $3,395 SGD
As of November 6, 2026
Save $4,111 SGD (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $8,138 SGD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6552511433. Listed at 21 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
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552511433
Dimensions7.14 × 5.45 × 3.75 mm
L/W Ratio1.31
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
7.14 mm5.45 mm1.20 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552511433
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.8%

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: $8,138 SGD|Low: $3,363 SGD|High: $8,293 SGD|Avg: $5,069 SGD|+1.0%
Queensmith
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
November 7, 2026
Retailer 13$3,395 SGD
Retailer 7$3,527 SGD
Retailer 5$4,040 SGD
Retailer 11$4,118 SGD
Retailer 4$4,154 SGD
Retailer 14$4,332 SGD
Retailer 2$4,657 SGD
Retailer 3$4,686 SGD
Retailer 8$4,720 SGD
Retailer 6$5,188 SGD
Retailer 9$5,239 SGD
Retailer 10$5,493 SGD
Retailer 12$7,506 SGD
Queensmith$8,138 SGD

27 data points across 14 retailers

21 retailers$3,395 SGD to $7,506 SGD

A
Cheapest Retailer
-
$3,395 SGD
A
Retailer 2
-
$3,527 SGD
View
B+
Retailer 3
-
$4,040 SGD
View
B+
Retailer 4
-
$4,118 SGD
View
B+
Retailer 5
-
$4,154 SGD
View
Final sale: no returns
B
Retailer 6
-
$4,332 SGD
View
B
Retailer 7
-
$4,333 SGD
View
B
Retailer 8
-
$4,571 SGD
View
B
Retailer 9
-
$4,657 SGD
View
Retailer 10
-
$4,659 SGD
View
Price last confirmed 20 days ago
Retailer 11
-
$4,659 SGD
View
Price last confirmed 22 days ago
B
Retailer 12
-
$4,686 SGD
View
B
Retailer 13
-
$4,720 SGD
View
Retailer 14
-
$4,838 SGD
View
Price last confirmed 22 days ago
Retailer 15
-
$5,014 SGD
View
Price last confirmed 30 days ago
B
Retailer 16
-
$5,239 SGD
View
Retailer 17
-
$5,375 SGD
View
Price last confirmed 19 days ago
B
Retailer 18
-
$5,493 SGD
View
B
Retailer 19
-
$7,506 SGD
View
Retailer 20
-
$8,116 SGD
View
Price last confirmed 21 days ago
Most Expensive
Queensmith
6552511433 · Oct 28
$8,138 SGD
£5,000 GBP
View
Price last confirmed 9 days ago
20 more retailers have this diamond
Prices start from $3,395 SGDSave up to $4,111 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
1.20ct Radiant
$3,395 SGD