Radiant|Natural|GIA

1.20ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 5241058000

Certificate GIA 5241058000

Diamond specifications and retailer prices

From $1,971 USD
As of November 5, 2026
Save $3,607 USD (65%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,578 USD at NZ Jewellers · As of November 5, 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 5241058000. Listed at 10 retailers as of November 5, 2026, with prices from $1,971 to $5,578, a $3,607 spread on the same certified stone. NZ Jewellers lists it at $5,578. 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
FluorescenceFaint
Pavilion angle62.16°
OriginNatural
Grading LabGIA
CertificateGIA 5241058000
Dimensions7.10 × 5.29 × 3.69 mm
L/W Ratio1.34
Key to symbols
Twinning Wisp, Crystal, Needle, Indented Natural
Top View
7.10 mm5.29 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5241058000
Side View
Table 62.0%CrownGirdle: MED-STKPavilion 62.16°Culet: NoneDepth 69.8%

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 5
Current: $5,578 USD|Low: $1,971 USD|High: $6,068 USD|Avg: $3,482 USD|-8.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 6$1,971 USD
Retailer 4$2,588 USD
Retailer 7$2,668 USD
Retailer 5$2,734 USD
Retailer 2$2,771 USD
Retailer 8$2,909 USD
Retailer 10$3,190 USD
Retailer 3$3,658 USD
Retailer 11$4,095 USD
Retailer 9$4,712 USD
NZ Jewellers$5,578 USD

41 data points across 11 retailers

10 retailers$1,971 USD to $5,578 USD

A
Cheapest Retailer
-
$1,971 USD
B+
Retailer 2
-
$2,588 USD
View
B+
Retailer 3
-
$2,668 USD
View
B+
Retailer 4
-
$2,734 USD
View
B+
Retailer 5
-
$2,771 USD
View
B+
Retailer 6
-
$2,909 USD
View
B+
Retailer 7
-
$3,190 USD
View
B
Retailer 8
-
$4,095 USD
View
B
Retailer 9
-
$4,712 USD
View
Most Expensive
B
NZ Jewellers
685ed388-b886-41e9-8558-cd2428aff669 · Nov 5
$5,578 USD
View
9 more retailers have this diamond
Prices start from $1,971 USDSave up to $3,607 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
$1,971 USD