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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 $3,380 SGD
As of November 5, 2026
Save $2,764 SGD (45%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $7,891 SGD 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: $7,891 SGD|Low: $3,380 SGD|High: $7,891 SGD|Avg: $4,390 SGD
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$3,380 SGD
Retailer 13$3,427 SGD
Retailer 12$3,435 SGD
Retailer 8$3,546 SGD
Retailer 3$3,551 SGD
Retailer 2$3,574 SGD
Retailer 4$3,685 SGD
Retailer 5$3,774 SGD
Retailer 14$3,919 SGD
Retailer 6$4,355 SGD
Retailer 7$4,393 SGD
Retailer 9$4,606 SGD
Retailer 11$6,144 SGD
NZ Jewellers$7,891 SGD

36 data points across 14 retailers

18 retailers$3,380 SGD to $6,144 SGD

B
Cheapest Retailer
-
$3,380 SGD
B
Retailer 2
-
$3,389 SGD
View
B
Retailer 3
-
$3,427 SGD
View
Retailer 4
-
$3,435 SGD
View
Price last confirmed 16 days ago
B
Retailer 5
-
$3,546 SGD
View
B
Retailer 6
-
$3,551 SGD
View
B
Retailer 7
-
$3,574 SGD
View
B
Retailer 8
-
$3,685 SGD
View
Retailer 9
-
$3,774 SGD
View
Price last confirmed 15 days ago
Retailer 10
-
$3,774 SGD
View
Price last confirmed 21 days ago
Retailer 11
-
$3,919 SGD
View
Price last confirmed 15 days ago
B
Retailer 12
-
$3,919 SGD
View
Retailer 13
-
$4,355 SGD
View
Price last confirmed 14 days ago
B
Retailer 14
-
$4,355 SGD
View
B
Retailer 15
-
$4,393 SGD
View
B
Retailer 16
-
$4,606 SGD
View
C
Retailer 17
-
$6,144 SGD
View
Most Expensive
NZ Jewellers
2fee05b9-a252-498c-b3a2-255a714bf111 · Oct 20
$7,891 SGD
$6,157 USD
View
Price last confirmed 16 days ago
17 more retailers have this diamond
Prices start from $3,380 SGDSave up to $2,764 SGD

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
$3,380 SGD