Round|Natural|GIA

1.20ct J I1 Round Natural Diamond

EX • J/I1 • GIA 1409310034

Certificate GIA 1409310034

Diamond specifications and retailer prices

From $1,818 USD
HK$14,200 HKD
As of November 1, 2026
Save $3,297 USD (64%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $5,115 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 1409310034. Listed at 9 retailers as of October 30, 2026, with prices from $1,818 to $5,115, a $3,297 spread on the same certified stone. NZ Jewellers lists it at $5,115. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
J
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1409310034
Dimensions6.81 × 6.75 × 4.24 mm
L/W Ratio1.01
Key to symbols
Twinning Wisp, Feather, Crystal, Needle
Top View
6.81 mm6.75 mm1.20 ctJ / I1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1409310034
Side View
Table 56.0%CrownGirdlePavilionCulet: NoneDepth 62.6%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $5,115 USD|Low: $1,805 USD|High: $5,217 USD|Avg: $2,704 USD|-2.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 4$1,818 USD
Retailer 3$1,882 USD
Retailer 10$2,210 USD
Retailer 7$2,302 USD
Retailer 5$2,446 USD
Retailer 8$2,446 USD
Retailer 6$2,559 USD
Retailer 9$2,823 USD
Retailer 11$3,025 USD
Retailer 2$3,041 USD
NZ Jewellers$5,115 USD

17 data points across 11 retailers

9 retailers$1,818 USD to $5,115 USD

B+
Cheapest Retailer
-
$1,818 USD
HK$14,200 HKD
B
Retailer 2
-
$2,210 USD
View
B
Retailer 3
-
$2,302 USD
View
B
Retailer 4
-
$2,446 USD
View
B
Retailer 5
-
$2,446 USD
View
B
Retailer 6
-
$2,559 USD
View
B
Retailer 7
-
$2,823 USD
View
B
Retailer 8
-
$3,041 USD
€2,896 EUR
View
Most Expensive
C
NZ Jewellers
e3631e30-be6a-42df-82c7-78a7c947bf25 · Oct 30
$5,115 USD
View
8 more retailers have this diamond
Prices start from $1,818 USDSave up to $3,297 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 Round
$1,818 USD