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Round|Natural|GIA

1.20ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 2557507607

Certificate GIA 2557507607

Diamond specifications and retailer prices

From $2,713 USD
As of November 6, 2026
Save $3,566 USD (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,279 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2557507607. Listed at 15 retailers as of November 5, 2026, with prices from $2,713 to $6,279, a $3,566 spread on the same certified stone. NZ Jewellers lists it at $6,279. 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 angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2557507607
Dimensions6.81 × 6.77 × 4.18 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.81 mm6.77 mm1.20 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557507607
Side View
Table 60.0%Crown 35.5°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 61.7%

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: $6,279 USD|Low: $2,688 USD|High: $6,457 USD|Avg: $3,907 USD|-2.8%
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 15$2,713 USD
Retailer 10$2,844 USD
Retailer 11$2,865 USD
Retailer 5$3,013 USD
Retailer 6$3,048 USD
Retailer 13$3,140 USD
Retailer 14$3,170 USD
Retailer 4$3,286 USD
Retailer 8$3,397 USD
Retailer 2$3,449 USD
Retailer 7$4,272 USD
Retailer 3$4,920 USD
Retailer 12$5,445 USD
Retailer 9$6,010 USD
NZ Jewellers$6,279 USD

27 data points across 15 retailers

15 retailers$2,713 USD to $6,279 USD

A
Cheapest Retailer
-
$2,713 USD
A
Retailer 2
-
$2,844 USD
View
A
Retailer 3
-
$2,865 USD
View
A
Retailer 4
-
$3,013 USD
View
Final sale: no returns
A
Retailer 5
-
$3,048 USD
View
A
Retailer 6
-
$3,140 USD
View
A
Retailer 7
-
$3,170 USD
View
A
Retailer 8
-
$3,286 USD
View
A
Retailer 9
-
$3,397 USD
View
A
Retailer 10
-
$3,449 USD
View
B+
Retailer 11
-
$3,632 USD
View
B+
Retailer 12
-
$4,920 USD
View
B+
Retailer 13
-
$5,445 USD
View
B
Retailer 14
-
$6,010 USD
View
Most Expensive
B
NZ Jewellers
b5e2a5a0-232f-4fbd-9b97-2bc3c786694f · Nov 5
$6,279 USD
View
14 more retailers have this diamond
Prices start from $2,713 USDSave up to $3,566 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
$2,713 USD