Radiant|Natural|GIA

1.20ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 2447669421

Certificate GIA 2447669421

Diamond specifications and retailer prices

From $3,290 USD
As of November 1, 2026
Save $3,838 USD (54%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $7,128 USD at NZ Jewellers · As of October 30, 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 I 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 2447669421. Listed at 17 retailers as of October 30, 2026, with prices from $3,290 to $7,128, a $3,838 spread on the same certified stone. NZ Jewellers lists it at $7,128. 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
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2447669421
Dimensions6.83 × 5.30 × 3.65 mm
L/W Ratio1.29
Top View
6.83 mm5.30 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2447669421
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $3,991 USD|Low: $3,481 USD|High: $6,924 USD|Avg: $4,529 USD|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 7$3,481 USD
Retailer 9$3,849 USD
Retailer 1$3,991 USD
Retailer 3$4,185 USD
Retailer 6$4,203 USD
Retailer 8$4,387 USD
Retailer 2$4,628 USD
Retailer 5$5,029 USD
Retailer 4$6,841 USD

37 data points across 9 retailers

17 retailers$3,290 USD to $7,128 USD

B+
Cheapest Retailer
-
$3,290 USD
B+
Retailer 2
-
$3,481 USD
View
B
Retailer 3
-
$3,706 USD
View
B
Retailer 4
-
$3,849 USD
View
B
Retailer 5
-
$3,991 USD
£3,142 GBP
View
B
Retailer 6
-
$4,185 USD
£3,295 GBP
View
B
Retailer 7
-
$4,190 USD
View
B
Retailer 8
-
$4,190 USD
View
B
Retailer 9
-
$4,203 USD
View
B
Retailer 10
-
$4,277 USD
View
B
Retailer 11
-
$4,330 USD
View
Retailer 12
-
$4,387 USD
A$6,749 AUD
View
Price last confirmed 29 days ago
B
Retailer 13
-
$4,628 USD
€4,408 EUR
View
Retailer 14
-
$4,630 USD
View
Price last confirmed 10 days ago
B
Retailer 15
-
$5,029 USD
ZAR 81,243 ZAR
View
B
Retailer 16
-
$6,841 USD
£5,387 GBP
View
Most Expensive
B
NZ Jewellers
fa093de3-088d-40cf-959a-81fa88147d54 · Oct 30
$7,128 USD
View
16 more retailers have this diamond
Prices start from $3,290 USDSave up to $3,838 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.

B+
1.20ct Radiant
$3,290 USD