Oval|Natural|GIA

1.20ct K SI1 Oval Natural Diamond

GD • K/SI1 • GIA 5556637102

Certificate GIA 5556637102

Diamond specifications and retailer prices

From $1,625 USD
As of November 5, 2026
Save $2,849 USD (64%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,474 USD at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5556637102. Listed at 15 retailers as of November 5, 2026, with prices from $1,625 to $4,474, a $2,849 spread on the same certified stone. NZ Jewellers lists it at $4,474. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
K
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle41.8°
Pavilion angle38.3°
OriginNatural
Grading LabGIA
CertificateGIA 5556637102
Dimensions8.28 × 5.83 × 3.78 mm
L/W Ratio1.42
Girdle conditionFaceted
Top View
8.28 mm5.83 mm1.20 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5556637102
Side View
Table 65.0%Crown 41.8°Girdle: THN-THKPavilion 38.3°Culet: NoneDepth 64.8%

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: $4,474 USD|Low: $1,625 USD|High: $4,677 USD|Avg: $2,379 USD|-4.3%
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 12$1,625 USD
Retailer 7$1,649 USD
Retailer 15$1,752 USD
Retailer 11$1,790 USD
Retailer 5$1,878 USD
Retailer 14$1,939 USD
Retailer 6$1,968 USD
Retailer 9$1,980 USD
Retailer 4$2,028 USD
Retailer 10$2,237 USD
Retailer 8$2,311 USD
Retailer 13$2,612 USD
Retailer 2$2,906 USD
Retailer 3$3,776 USD
NZ Jewellers$4,474 USD

33 data points across 15 retailers

15 retailers$1,625 USD to $4,474 USD

A
Cheapest Retailer
-
$1,625 USD
B+
Retailer 2
-
$1,649 USD
View
B+
Retailer 3
-
$1,752 USD
View
B+
Retailer 4
-
$1,790 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,878 USD
View
B+
Retailer 6
-
$1,939 USD
View
Retailer 7
-
$1,968 USD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$1,980 USD
View
B+
Retailer 9
-
$2,028 USD
View
B+
Retailer 10
-
$2,237 USD
View
B
Retailer 11
-
$2,311 USD
View
B
Retailer 12
-
$2,612 USD
View
B
Retailer 13
-
$2,906 USD
View
B
Retailer 14
-
$3,776 USD
View
Most Expensive
C
NZ Jewellers
df2af19c-e29f-41ac-baf8-281f35e77658 · Nov 5
$4,474 USD
View
14 more retailers have this diamond
Prices start from $1,625 USDSave up to $2,849 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
$1,625 USD