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Radiant|Natural|GIA

1.20ct H SI1 Radiant Natural Diamond

ID • H/SI1 • GIA 2556740785

Certificate GIA 2556740785

Diamond specifications and retailer prices

From $4,000 SGD
As of November 1, 2026
Save $4,316 SGD (52%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $8,665 SGD at NZ Jewellers · As of October 21, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556740785. Listed at 27 retailers as of November 1, 2026, with a 108% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.20
Carat
H
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle51.66°
Pavilion angle35.15°
OriginNatural
Grading LabGIA
CertificateGIA 2556740785
Dimensions7.33 × 5.18 × 3.51 mm
L/W Ratio1.42
Girdle conditionThick
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
7.33 mm5.18 mm1.20 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556740785
Side View
Table 72.0%Crown 51.66°Girdle: STK-THKPavilion 35.15°Culet: NoneDepth 67.8%

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 1
Current: $8,665 SGD|Low: $3,811 SGD|High: $8,665 SGD|Avg: $5,266 SGD
NZ Jewellers
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
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Retailer 11
Retailer 12
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Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
Retailer 26
November 3, 2026
Retailer 14$4,000 SGD
Retailer 22$4,069 SGD
Retailer 11$4,159 SGD
Retailer 12$4,184 SGD
Retailer 10$4,232 SGD
Retailer 24$4,338 SGD
Retailer 3$4,506 SGD
Retailer 26$4,506 SGD
Retailer 16$4,514 SGD
Retailer 7$4,639 SGD
Retailer 5$4,679 SGD
Retailer 19$4,819 SGD
Retailer 20$4,851 SGD
Retailer 6$4,909 SGD
Retailer 9$4,909 SGD
Retailer 8$5,062 SGD
Retailer 2$5,087 SGD
Retailer 4$5,199 SGD
Retailer 15$5,328 SGD
Retailer 17$5,346 SGD
Retailer 21$5,629 SGD
Retailer 18$5,630 SGD
Retailer 23$6,113 SGD
Retailer 13$8,316 SGD
Retailer 25$8,520 SGD
NZ Jewellers$8,665 SGD

23 data points across 26 retailers

27 retailers$4,000 SGD to $8,316 SGD

B+
Cheapest Retailer
-
$4,000 SGD
B+
Retailer 2
-
$4,069 SGD
View
B+
Retailer 3
-
$4,184 SGD
View
B+
Retailer 4
-
$4,232 SGD
View
B+
Retailer 5
-
$4,338 SGD
View
Retailer 6
-
$4,506 SGD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$4,506 SGD
View
Retailer 8
-
$4,506 SGD
View
Price last confirmed 16 days ago
B+
Retailer 9
-
$4,514 SGD
View
B+
Retailer 10
-
$4,639 SGD
View
B+
Retailer 11
-
$4,679 SGD
View
B+
Retailer 12
-
$4,851 SGD
View
B
Retailer 13
-
$4,909 SGD
View
B
Retailer 14
-
$4,909 SGD
View
B
Retailer 15
-
$5,062 SGD
View
B
Retailer 16
-
$5,087 SGD
View
B
Retailer 17
-
$5,199 SGD
View
Retailer 18
-
$5,199 SGD
View
Price last confirmed 17 days ago
Retailer 19
-
$5,328 SGD
View
Price last confirmed 30 days ago
B
Retailer 20
-
$5,346 SGD
View
B
Retailer 21
-
$5,629 SGD
View
Retailer 22
-
$5,630 SGD
View
Price last confirmed 25 days ago
B
Retailer 23
-
$6,113 SGD
View
B
Retailer 24
-
$8,316 SGD
View
Retailer 25
-
$8,520 SGD
View
Price last confirmed 10 days ago
Retailer 26
-
$8,665 SGD
View
Price last confirmed 8 days ago
Most Expensive
NZ Jewellers
08ea702e-d102-4fa3-8078-23c675ad2a1a · Oct 21
$8,665 SGD
$6,761 USD
View
Price last confirmed 16 days ago
26 more retailers have this diamond
Prices start from $4,000 SGDSave up to $4,316 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
$4,000 SGD