CaratHunter
Plans
Radiant|Natural|GIA

1.20ct K SI1 Radiant Natural Diamond

GD • K/SI1 • GIA 2556797520

Certificate GIA 2556797520

Diamond specifications and retailer prices

From $1,383 USD
As of November 6, 2026
Save $3,147 USD (69%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,530 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2556797520. Listed at 16 retailers as of November 5, 2026, with prices from $1,383 to $4,530, a $3,147 spread on the same certified stone. NZ Jewellers lists it at $4,530. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
K
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556797520
Dimensions7.17 × 5.31 × 3.72 mm
L/W Ratio1.35
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Pinpoint, Needle
Top View
7.17 mm5.31 mm1.20 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556797520
Side View
Table 69.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 70.1%

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 6
Current: $4,530 USD|Low: $1,383 USD|High: $4,609 USD|Avg: $2,212 USD|-1.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 7, 2026
Retailer 9$1,383 USD
Retailer 14$1,692 USD
Retailer 2$1,705 USD
Retailer 8$1,743 USD
Retailer 12$1,857 USD
Retailer 6$1,879 USD
Retailer 3$1,943 USD
Retailer 10$1,994 USD
Retailer 7$2,016 USD
Retailer 4$2,143 USD
Retailer 13$2,266 USD
Retailer 11$2,361 USD
Retailer 5$3,272 USD
NZ Jewellers$4,530 USD

25 data points across 14 retailers

16 retailers$1,383 USD to $4,530 USD

A
Cheapest Retailer
-
$1,383 USD
B+
Retailer 2
-
$1,692 USD
View
B+
Retailer 3
-
$1,705 USD
View
B+
Retailer 4
-
$1,743 USD
View
B+
Retailer 5
-
$1,857 USD
View
Retailer 6
-
$1,879 USD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$1,943 USD
View
B+
Retailer 8
-
$1,994 USD
View
B+
Retailer 9
-
$2,016 USD
View
Retailer 10
-
$2,080 USD
View
Price last confirmed 39 days ago
B+
Retailer 11
-
$2,143 USD
View
Retailer 12
-
$2,218 USD
View
Price last confirmed 62 days ago
B+
Retailer 13
-
$2,266 USD
View
B
Retailer 14
-
$2,361 USD
View
B
Retailer 15
-
$3,272 USD
View
Most Expensive
C
NZ Jewellers
c20c1bc0-666b-47b3-9666-dd86d4768dea · Nov 5
$4,530 USD
View
15 more retailers have this diamond
Prices start from $1,383 USDSave up to $3,147 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
$1,383 USD