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Radiant|Natural|GIA

1.20ct J SI1 Radiant Natural Diamond

ID • J/SI1 • GIA 7548286172

Certificate GIA 7548286172

Diamond specifications and retailer prices

From $1,382 USD
HK$10,800 HKD
As of November 1, 2026
Save $1,809 USD (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $4,504 USD at NZ Jewellers · As of September 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 J 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 7548286172. Listed at 19 retailers as of November 1, 2026, with a 131% 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
J
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7548286172
Dimensions6.89 × 5.29 × 3.70 mm
L/W Ratio1.30
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Needle, Indented Natural
Top View
6.89 mm5.29 mm1.20 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 7548286172
Side View
Table 70.0%CrownGirdle: THK-VTKPavilionCulet: 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 1
Current: $3,192 USD|Low: $1,370 USD|High: $3,265 USD|Avg: $2,055 USD|-2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 9$1,382 USD
Retailer 5$1,464 USD
Retailer 7$1,681 USD
Retailer 11$1,717 USD
Retailer 4$1,900 USD
Retailer 2$1,929 USD
Retailer 8$2,042 USD
Retailer 10$2,233 USD
Retailer 3$2,410 USD
Retailer 6$2,486 USD
Retailer 1$3,192 USD

32 data points across 11 retailers

19 retailers$1,382 USD to $3,192 USD

A
Cheapest Retailer
-
$1,382 USD
HK$10,800 HKD
A
Retailer 2
-
$1,464 USD
₹139,454 INR
View
A
Retailer 3
-
$1,681 USD
View
Final sale: no returns
A
Retailer 4
-
$1,717 USD
SGD 2,320 SGD
View
A
Retailer 5
-
$1,743 USD
View
A
Retailer 6
-
$1,745 USD
View
Retailer 7
-
$1,847 USD
View
Price last confirmed 26 days ago
Retailer 8
-
$1,847 USD
View
Price last confirmed 26 days ago
B+
Retailer 9
-
$1,900 USD
View
B+
Retailer 10
-
$1,929 USD
SGD 2,607 SGD
View
Retailer 11
-
$1,932 USD
View
Price last confirmed 33 days ago
B+
Retailer 12
-
$1,981 USD
A$3,048 AUD
View
B+
Retailer 13
-
$2,042 USD
£1,608 GBP
View
Retailer 14
-
$2,131 USD
View
Price last confirmed 24 days ago
Retailer 15
-
$2,233 USD
ZAR 36,078 ZAR
View
Price last confirmed 7 days ago
Retailer 16
-
$2,410 USD
A$3,707 AUD
View
Price last confirmed 28 days ago
B+
Retailer 17
-
$2,486 USD
€2,368 EUR
View
B
Retailer 18
-
$3,192 USD
£2,513 GBP
View
Most Expensive
NZ Jewellers
1f2a95a9-fe07-47c0-9727-c1747871d050 · Sep 30
$4,504 USD
View
Price last confirmed 33 days ago
18 more retailers have this diamond
Prices start from $1,382 USDSave up to $1,809 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
$1,382 USD