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Radiant|Natural|GIA

1.20ct F SI2 Radiant Natural Diamond

EX • F/SI2 • GIA 1557638020

Certificate GIA 1557638020

Diamond specifications and retailer prices

From $2,313 USD
As of October 28, 2026
Save $904 USD (28%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,501 USD at NZ Jewellers · As of October 17, 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1557638020. Listed at 18 retailers as of October 28, 2026, with a 39% 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
F
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1557638020
Dimensions6.94 × 5.02 × 3.64 mm
L/W Ratio1.38
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Indented Natural, Needle
Top View
6.94 mm5.02 mm1.20 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 1557638020
Side View
Table 64.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 72.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $5,501 USD|Low: $2,242 USD|High: $5,568 USD|Avg: $3,112 USD|-1.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 12$2,313 USD
Retailer 11$2,382 USD
Retailer 5$2,566 USD
Retailer 8$2,581 USD
Retailer 3$2,631 USD
Retailer 10$2,680 USD
Retailer 7$2,721 USD
Retailer 6$2,741 USD
Retailer 4$3,036 USD
Retailer 2$3,217 USD
Retailer 9$4,528 USD
NZ Jewellers$5,501 USD

26 data points across 12 retailers

18 retailers$2,313 USD to $3,217 USD

A
Cheapest Retailer
-
$2,313 USD
Retailer 2
-
$2,562 USD
View
Price last confirmed 42 days ago
A
Retailer 3
-
$2,566 USD
£2,020 GBP
View
Retailer 4
-
$2,568 USD
View
Price last confirmed 49 days ago
Retailer 5
-
$2,581 USD
View
Price last confirmed 9 days ago
Retailer 6
-
$2,631 USD
View
Price last confirmed 16 days ago
Retailer 7
-
$2,631 USD
View
Price last confirmed 18 days ago
A
Retailer 8
-
$2,680 USD
View
Retailer 9
-
$2,721 USD
View
Price last confirmed 8 days ago
Retailer 10
-
$2,733 USD
View
Price last confirmed 17 days ago
B+
Retailer 11
-
$2,741 USD
£2,159 GBP
View
Retailer 12
-
$2,956 USD
View
Price last confirmed 45 days ago
Retailer 13
-
$2,963 USD
View
Price last confirmed 52 days ago
Retailer 14
-
$3,036 USD
View
Price last confirmed 15 days ago
B+
Retailer 15
-
$3,217 USD
€3,064 EUR
View
Retailer 16
-
$4,528 USD
£3,565 GBP
View
Price last confirmed 9 days ago
Retailer 17
-
$5,355 USD
View
Price last confirmed 43 days ago
Most Expensive
NZ Jewellers
f0e7bff1-40a4-4d9b-a033-a04f44df26dc · Oct 17
$5,501 USD
View
Price last confirmed 16 days ago
17 more retailers have this diamond
Prices start from $2,313 USDSave up to $904 USD

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
$2,313 USD