Round|Natural|GIA

1.20ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6532431880

Certificate GIA 6532431880

Diamond specifications and retailer prices

From $1,536 USD
As of November 6, 2026
Save $2,160 USD (58%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,504 USD at NZ Jewellers · As of September 25, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6532431880. Listed at 16 retailers as of November 4, 2026, with a 141% 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
K
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6532431880
Dimensions6.78 × 6.75 × 4.21 mm
L/W Ratio1.00
Top View
6.78 mm6.75 mm1.20 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6532431880
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.3%

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: $4,324 USD|Low: $1,536 USD|High: $4,324 USD|Avg: $2,245 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 2$1,536 USD
Retailer 10$1,605 USD
Retailer 15$1,650 USD
Retailer 4$1,724 USD
Retailer 3$1,770 USD
Retailer 14$1,849 USD
Retailer 7$1,866 USD
Retailer 6$1,890 USD
Retailer 8$1,978 USD
Retailer 9$1,978 USD
Retailer 12$2,069 USD
Retailer 11$2,763 USD
Retailer 5$3,173 USD
Retailer 13$3,696 USD
NZ Jewellers$4,324 USD

31 data points across 15 retailers

16 retailers$1,536 USD to $3,696 USD

A
Cheapest Retailer
-
$1,536 USD
A
Retailer 2
-
$1,605 USD
View
A
Retailer 3
-
$1,650 USD
View
A
Retailer 4
-
$1,724 USD
View
A
Retailer 5
-
$1,770 USD
View
Final sale: no returns
A
Retailer 6
-
$1,849 USD
View
A
Retailer 7
-
$1,866 USD
View
A
Retailer 8
-
$1,890 USD
View
A
Retailer 9
-
$1,978 USD
View
A
Retailer 10
-
$1,978 USD
View
B+
Retailer 11
-
$2,069 USD
View
B
Retailer 12
-
$2,763 USD
View
B
Retailer 13
-
$3,173 USD
View
B
Retailer 14
-
$3,696 USD
View
Retailer 15
-
$4,324 USD
View
Price last confirmed 14 days ago
Most Expensive
NZ Jewellers
961e6826-3066-41fc-8d22-1bc997f18a23 · Sep 25
$4,504 USD
View
Price last confirmed 41 days ago
15 more retailers have this diamond
Prices start from $1,536 USDSave up to $2,160 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
$1,536 USD