Round|Natural|GIA

1.20ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 1559002784

Certificate GIA 1559002784

Diamond specifications and retailer prices

From $3,599 USD
As of November 6, 2026
Save $1,840 USD (34%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $8,234 USD at NZ Jewellers · As of October 30, 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1559002784. Listed at 21 retailers as of November 4, 2026, with a 51% 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
D
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1559002784
Dimensions6.80 × 6.84 × 4.19 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.80 mm6.84 mm1.20 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559002784
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.4%

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: $8,234 USD|Low: $3,419 USD|High: $8,234 USD|Avg: $5,014 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
November 5, 2026
Retailer 9$3,599 USD
Retailer 7$3,761 USD
Retailer 4$4,260 USD
Retailer 8$4,281 USD
Retailer 10$4,281 USD
Retailer 12$4,281 USD
Retailer 11$4,940 USD
Retailer 2$5,004 USD
Retailer 5$5,130 USD
Retailer 3$5,218 USD
Retailer 6$7,567 USD
NZ Jewellers$8,234 USD

36 data points across 12 retailers

21 retailers$3,599 USD to $5,439 USD

A
Cheapest Retailer
-
$3,599 USD
A
Retailer 2
-
$3,630 USD
View
A
Retailer 3
-
$3,761 USD
View
Final sale: no returns
A
Retailer 4
-
$3,776 USD
View
B+
Retailer 5
-
$3,911 USD
View
B+
Retailer 6
-
$4,041 USD
View
Retailer 7
-
$4,260 USD
View
Price last confirmed 7 days ago
Retailer 8
-
$4,281 USD
View
Price last confirmed 8 days ago
Retailer 9
-
$4,281 USD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$4,351 USD
View
B+
Retailer 11
-
$4,662 USD
View
Retailer 12
-
$4,820 USD
View
Price last confirmed 7 days ago
Retailer 13
-
$4,820 USD
View
Price last confirmed 7 days ago
Retailer 14
-
$4,940 USD
View
Price last confirmed 10 days ago
Retailer 15
-
$4,980 USD
View
Price last confirmed 7 days ago
B+
Retailer 16
-
$5,004 USD
View
B+
Retailer 17
-
$5,130 USD
View
Retailer 18
-
$5,218 USD
View
Price last confirmed 14 days ago
B+
Retailer 19
-
$5,439 USD
View
Retailer 20
-
$7,567 USD
View
Price last confirmed 8 days ago
Most Expensive
NZ Jewellers
6b7cd258-3fcf-404a-9cec-684319f1aae3 · Oct 30
$8,234 USD
View
Price last confirmed 7 days ago
20 more retailers have this diamond
Prices start from $3,599 USDSave up to $1,840 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
$3,599 USD