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Round|Natural|GIA

1.20ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 250000309938

Certificate GIA 250000309938

Diamond specifications and retailer prices

From $1,550 USD
As of November 3, 2026
Save $2,230 USD (59%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $3,780 USD at NZ Jewellers · As of November 2, 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 250000309938. Listed at 4 retailers as of November 2, 2026, with prices from $1,550 to $3,780, a $2,230 spread on the same certified stone. NZ Jewellers lists it at $3,780. 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 angle36.5°
Pavilion angle41.1°
OriginNatural
Grading LabGIA
CertificateGIA 250000309938
Dimensions6.78 × 6.74 × 4.27 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.78 mm6.74 mm1.20 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 250000309938
Side View
Table 57.0%Crown 36.5°Girdle: MediumPavilion 41.1°Culet: NoneDepth 63.1%

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 3
Current: $3,780 USD|Low: $1,550 USD|High: $4,476 USD|Avg: $3,023 USD|-7.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 4$1,550 USD
Retailer 3$1,601 USD
Retailer 2$1,621 USD
Retailer 7$2,800 USD
NZ Jewellers$3,780 USD
Retailer 6$4,236 USD
Retailer 5$4,476 USD

14 data points across 7 retailers

4 retailers$1,550 USD to $3,780 USD

A
Cheapest Retailer
-
$1,550 USD
A
Retailer 2
-
$1,601 USD
View
A
Retailer 3
-
$1,621 USD
View
Most Expensive
B+
NZ Jewellers
f680204d-e014-49fa-8f08-1e75eb9ff54e · Nov 2
$3,780 USD
View
3 more retailers have this diamond
Prices start from $1,550 USDSave up to $2,230 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
$1,550 USD