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Round|Natural|GIA

1.20ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 1559111338

Certificate GIA 1559111338

Diamond specifications and retailer prices

From $2,150 USD
As of November 6, 2026
Save $3,712 USD (63%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $5,862 USD at NZ Jewellers · As of November 5, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1559111338. Listed at 22 retailers as of November 5, 2026, with prices from $2,150 to $5,862, a $3,712 spread on the same certified stone. NZ Jewellers lists it at $5,862. 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
FluorescenceFaint
Crown angle34°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 1559111338
Dimensions6.76 × 6.78 × 4.21 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
6.76 mm6.78 mm1.20 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1559111338
Side View
Table 60.0%Crown 34°Girdle: Slightly ThickPavilion 41.4°Culet: NoneDepth 62.1%

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: $5,862 USD|Low: $2,124 USD|High: $6,146 USD|Avg: $2,960 USD|-4.6%
NZ Jewellers
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 16
Retailer 17
Retailer 18
Retailer 19
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Retailer 21
Retailer 22
November 6, 2026
Retailer 9$2,150 USD
Retailer 14$2,245 USD
Retailer 8$2,306 USD
Retailer 10$2,317 USD
Retailer 17$2,345 USD
Retailer 11$2,362 USD
Retailer 3$2,540 USD
Retailer 12$2,565 USD
Retailer 2$2,572 USD
Retailer 20$2,600 USD
Retailer 6$2,657 USD
Retailer 22$2,659 USD
Retailer 5$2,800 USD
Retailer 7$2,800 USD
Retailer 13$2,900 USD
Retailer 19$2,931 USD
Retailer 16$2,950 USD
Retailer 18$3,273 USD
Retailer 15$3,414 USD
Retailer 21$3,432 USD
Retailer 4$4,946 USD
NZ Jewellers$5,862 USD

19 data points across 22 retailers

22 retailers$2,150 USD to $5,862 USD

A
Cheapest Retailer
-
$2,150 USD
A
Retailer 2
-
$2,245 USD
View
A
Retailer 3
-
$2,306 USD
View
A
Retailer 4
-
$2,317 USD
View
A
Retailer 5
-
$2,345 USD
View
Final sale: no returns
A
Retailer 6
-
$2,362 USD
View
A
Retailer 7
-
$2,540 USD
View
Retailer 8
-
$2,565 USD
View
Price last confirmed 8 days ago
A
Retailer 9
-
$2,572 USD
View
A
Retailer 10
-
$2,600 USD
View
A
Retailer 11
-
$2,657 USD
View
A
Retailer 12
-
$2,659 USD
View
A
Retailer 13
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$2,800 USD
View
A
Retailer 14
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$2,800 USD
View
A
Retailer 15
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$2,900 USD
View
A
Retailer 16
-
$2,931 USD
View
A
Retailer 17
-
$2,950 USD
View
B+
Retailer 18
-
$3,273 USD
View
Retailer 19
-
$3,414 USD
View
Price last confirmed 14 days ago
B+
Retailer 20
-
$3,432 USD
View
B
Retailer 21
-
$4,946 USD
View
Most Expensive
B
NZ Jewellers
28dc1c68-bee1-46b5-9d7a-18305e71e55d · Nov 5
$5,862 USD
View
21 more retailers have this diamond
Prices start from $2,150 USDSave up to $3,712 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
$2,150 USD