Round|Natural|GIA

1.20ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 5241078555

Certificate GIA 5241078555

Diamond specifications and retailer prices

From $3,046 USD
HK$23,800 HKD
As of October 30, 2026
Save $3,787 USD (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $7,081 USD at NZ Jewellers · As of October 17, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5241078555. Listed at 21 retailers as of October 29, 2026, with a 124% 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
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5241078555
Dimensions6.90 × 6.87 × 4.14 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Cavity, Needle
Top View
6.90 mm6.87 mm1.20 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5241078555
Side View
Table 60.0%Crown 32.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.2%

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: Oct 30
Current: $3,213 USD|Low: $3,193 USD|High: $6,880 USD|Avg: $4,470 USD|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 1$3,213 USD
Retailer 11$3,559 USD
Retailer 3$3,735 USD
Retailer 12$3,751 USD
Retailer 6$3,922 USD
Retailer 2$4,064 USD
Retailer 7$4,132 USD
Retailer 4$4,358 USD
Retailer 5$4,599 USD
Retailer 10$4,934 USD
Retailer 8$6,775 USD
Retailer 9$6,834 USD

26 data points across 12 retailers

21 retailers$3,046 USD to $6,834 USD

A
Cheapest Retailer
-
$3,046 USD
HK$23,800 HKD
A
Retailer 2
-
$3,213 USD
₹305,954 INR
View
B+
Retailer 3
-
$3,559 USD
SGD 4,809 SGD
View
B+
Retailer 4
-
$3,638 USD
View
B+
Retailer 5
-
$3,732 USD
View
B+
Retailer 6
-
$3,735 USD
View
B+
Retailer 7
-
$3,751 USD
View
Final sale: no returns
Retailer 8
-
$3,868 USD
SGD 5,227 SGD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$3,922 USD
£3,089 GBP
View
Retailer 10
-
$4,064 USD
View
Price last confirmed 10 days ago
Retailer 11
-
$4,064 USD
View
Price last confirmed 18 days ago
Retailer 12
-
$4,064 USD
View
Price last confirmed 15 days ago
B+
Retailer 13
-
$4,132 USD
£3,253 GBP
View
B+
Retailer 14
-
$4,212 USD
View
Retailer 15
-
$4,358 USD
A$6,704 AUD
View
Price last confirmed 26 days ago
B+
Retailer 16
-
$4,599 USD
€4,380 EUR
View
Retailer 17
-
$4,690 USD
View
Price last confirmed 12 days ago
Retailer 18
-
$4,934 USD
ZAR 79,705 ZAR
View
Price last confirmed 13 days ago
Retailer 19
-
$6,775 USD
£5,335 GBP
View
Price last confirmed 8 days ago
B
Retailer 20
-
$6,834 USD
£5,381 GBP
View
Most Expensive
NZ Jewellers
8e1cc228-1a90-48dd-8d16-6e0c29b4df9c · Oct 17
$7,081 USD
View
Price last confirmed 13 days ago
20 more retailers have this diamond
Prices start from $3,046 USDSave up to $3,787 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 Round
$3,046 USD