Oval|Natural|GIA

1.20ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 1548591047

Certificate GIA 1548591047

Diamond specifications and retailer prices

From $3,122 USD
As of November 5, 2026
Save $3,833 USD (55%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $7,909 USD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.2ct natural oval diamond

This 1.2ct natural oval sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1548591047. Listed at 23 retailers as of November 2, 2026, with a 123% 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle38.7°
OriginNatural
Grading LabGIA
CertificateGIA 1548591047
Dimensions8.53 × 6.14 × 3.71 mm
L/W Ratio1.39
Girdle conditionFaceted
Top View
8.53 mm6.14 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1548591047
Side View
Table 63.0%Crown 34.1°Girdle: MED-STKPavilion 38.7°Culet: NoneDepth 60.4%

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 5
Current: $4,430 USD|Low: $3,122 USD|High: $7,317 USD|Avg: $4,388 USD|-4.2%
Retailer 1
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
Retailer 16
Retailer 17
Retailer 18
November 3, 2026
Retailer 4$3,122 USD
Retailer 17$3,302 USD
Retailer 15$3,372 USD
Retailer 8$3,482 USD
Retailer 5$3,573 USD
Retailer 9$3,652 USD
Retailer 7$3,775 USD
Retailer 12$4,080 USD
Retailer 13$4,259 USD
Retailer 3$4,300 USD
Retailer 18$4,300 USD
Retailer 1$4,430 USD
Retailer 2$4,440 USD
Retailer 10$4,601 USD
Retailer 14$4,940 USD
Retailer 6$5,191 USD
Retailer 16$5,367 USD
Retailer 11$6,955 USD

25 data points across 18 retailers

23 retailers$3,122 USD to $6,955 USD

A
Cheapest Retailer
-
$3,122 USD
A
Retailer 2
-
$3,302 USD
View
A
Retailer 3
-
$3,372 USD
View
A
Retailer 4
-
$3,482 USD
View
A
Retailer 5
-
$3,573 USD
View
B+
Retailer 6
-
$3,622 USD
View
B+
Retailer 7
-
$3,775 USD
View
B+
Retailer 8
-
$4,080 USD
View
Retailer 9
-
$4,113 USD
View
Price last confirmed 39 days ago
Retailer 10
-
$4,113 USD
View
Price last confirmed 38 days ago
B+
Retailer 11
-
$4,259 USD
View
B+
Retailer 12
-
$4,300 USD
View
B+
Retailer 13
-
$4,300 USD
View
B+
Retailer 14
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$4,430 USD
View
B+
Retailer 15
-
$4,440 USD
View
Retailer 16
-
$4,576 USD
View
Price last confirmed 28 days ago
B+
Retailer 17
-
$4,601 USD
View
Retailer 18
-
$4,745 USD
View
Price last confirmed 38 days ago
B+
Retailer 19
-
$4,940 USD
View
B+
Retailer 20
-
$5,191 USD
View
B+
Retailer 21
-
$5,367 USD
View
B
Retailer 22
-
$6,955 USD
View
Most Expensive
NZ Jewellers
11d9d830-3bbc-45c3-9e4d-f74ab8ac4177 · Sep 30
$7,909 USD
View
Price last confirmed 37 days ago
22 more retailers have this diamond
Prices start from $3,122 USDSave up to $3,833 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 Oval
$3,122 USD