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Oval|Natural|GIA

1.20ct K SI1 Oval Natural Diamond

GD • K/SI1 • GIA 1375718922

Certificate GIA 1375718922

Diamond specifications and retailer prices

From $4,757 NZD
As of November 5, 2026
Save $3,891 NZD (45%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $11,107 NZD at NZ Jewellers · As of October 20, 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 1375718922. Listed at 18 retailers as of November 4, 2026, with a 82% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1375718922
Dimensions8.49 × 5.84 × 3.65 mm
L/W Ratio1.45
Culet sizeNone
Top View
8.49 mm5.84 mm1.20 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1375718922
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 62.4%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $11,107 NZD|Low: $4,757 NZD|High: $11,107 NZD|Avg: $6,179 NZD
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
November 6, 2026
Retailer 10$4,757 NZD
Retailer 13$4,824 NZD
Retailer 12$4,834 NZD
Retailer 8$4,991 NZD
Retailer 3$4,999 NZD
Retailer 2$5,031 NZD
Retailer 4$5,186 NZD
Retailer 5$5,312 NZD
Retailer 14$5,516 NZD
Retailer 6$6,130 NZD
Retailer 7$6,184 NZD
Retailer 9$6,483 NZD
Retailer 11$8,648 NZD
NZ Jewellers$11,107 NZD

36 data points across 14 retailers

18 retailers$4,757 NZD to $8,648 NZD

B
Cheapest Retailer
-
$4,757 NZD
B
Retailer 2
-
$4,770 NZD
View
B
Retailer 3
-
$4,824 NZD
View
Retailer 4
-
$4,834 NZD
View
Price last confirmed 16 days ago
B
Retailer 5
-
$4,991 NZD
View
B
Retailer 6
-
$4,999 NZD
View
B
Retailer 7
-
$5,031 NZD
View
B
Retailer 8
-
$5,186 NZD
View
Retailer 9
-
$5,312 NZD
View
Price last confirmed 15 days ago
Retailer 10
-
$5,312 NZD
View
Price last confirmed 21 days ago
Retailer 11
-
$5,516 NZD
View
Price last confirmed 15 days ago
B
Retailer 12
-
$5,516 NZD
View
Retailer 13
-
$6,130 NZD
View
Price last confirmed 14 days ago
B
Retailer 14
-
$6,130 NZD
View
B
Retailer 15
-
$6,184 NZD
View
B
Retailer 16
-
$6,483 NZD
View
C
Retailer 17
-
$8,648 NZD
View
Most Expensive
NZ Jewellers
2fee05b9-a252-498c-b3a2-255a714bf111 · Oct 20
$11,107 NZD
$6,157 USD
View
Price last confirmed 16 days ago
17 more retailers have this diamond
Prices start from $4,757 NZDSave up to $3,891 NZD

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.

B
1.20ct Oval
$4,757 NZD