Round|Natural|GIA

1.20ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 6545460107

Certificate GIA 6545460107

Diamond specifications and retailer prices

From $2,470 USD
As of November 6, 2026
Save $2,936 USD (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,128 USD at Queensmith · As of October 28, 2026
View at Queensmith

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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6545460107. Listed at 18 retailers as of November 4, 2026, with a 119% 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6545460107
Dimensions6.85 × 6.82 × 4.22 mm
L/W Ratio1.00
Top View
6.85 mm6.82 mm1.20 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545460107
Side View
Table 55.0%Crown 32°Girdle: Slightly ThickPavilion 41.2°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,128 USD|Low: $2,470 USD|High: $6,147 USD|Avg: $3,781 USD|+2.4%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$2,470 USD
Retailer 2$2,555 USD
Retailer 8$2,961 USD
Retailer 9$2,992 USD
Retailer 5$3,093 USD
Retailer 3$3,333 USD
Retailer 4$3,764 USD
Retailer 6$5,406 USD
Queensmith$6,128 USD

35 data points across 9 retailers

18 retailers$2,470 USD to $5,406 USD

A
Cheapest Retailer
-
$2,470 USD
A
Retailer 2
-
$2,555 USD
View
A
Retailer 3
-
$2,961 USD
View
A
Retailer 4
-
$2,992 USD
View
Final sale: no returns
A
Retailer 5
-
$3,029 USD
View
A
Retailer 6
-
$3,093 USD
View
Retailer 7
-
$3,241 USD
View
Price last confirmed 39 days ago
Retailer 8
-
$3,241 USD
View
Price last confirmed 28 days ago
Retailer 9
-
$3,241 USD
View
Price last confirmed 25 days ago
B+
Retailer 10
-
$3,333 USD
View
Retailer 11
-
$3,366 USD
View
Price last confirmed 38 days ago
B+
Retailer 12
-
$3,384 USD
View
B+
Retailer 13
-
$3,432 USD
View
Retailer 14
-
$3,740 USD
View
Price last confirmed 38 days ago
B+
Retailer 15
-
$3,764 USD
View
B
Retailer 16
-
$5,406 USD
View
Retailer 17
-
$5,647 USD
View
Price last confirmed 39 days ago
Most Expensive
Queensmith
6545460107 · Oct 28
$6,128 USD
£4,825 GBP
View
Price last confirmed 8 days ago
17 more retailers have this diamond
Prices start from $2,470 USDSave up to $2,936 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
$2,470 USD