Oval|Natural|GIA

1.20ct I SI1 Oval Natural Diamond

VG • I/SI1 • GIA 6542158371

Certificate GIA 6542158371

Diamond specifications and retailer prices

From $3,677 SGD
As of November 4, 2026
Save $4,652 SGD (56%) vs most expensive(unlock to see where)
34 retailers carry this diamond
Most expensive: $8,329 SGD 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6542158371. Listed at 34 retailers as of November 4, 2026, with a 127% 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
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle39.91°
Pavilion angle39.79°
OriginNatural
Grading LabGIA
CertificateGIA 6542158371
Dimensions8.17 × 5.92 × 3.78 mm
L/W Ratio1.38
Top View
8.17 mm5.92 mm1.20 ctI / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6542158371
Side View
Table 59.0%Crown 39.91°Girdle: STK-THKPavilion 39.79°Culet: NoneDepth 63.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $5,835 SGD|Low: $3,664 SGD|High: $8,091 SGD|Avg: $5,027 SGD|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 6$3,677 SGD
Retailer 10$3,997 SGD
Retailer 2$4,036 SGD
Retailer 3$4,184 SGD
Retailer 8$4,332 SGD
Retailer 9$4,911 SGD
Retailer 4$4,947 SGD
Retailer 11$5,120 SGD
Retailer 7$5,594 SGD
Retailer 1$5,835 SGD
Retailer 5$7,973 SGD

38 data points across 11 retailers

34 retailers$3,677 SGD to $8,329 SGD

B+
Cheapest Retailer
-
$3,677 SGD
B+
Retailer 2
-
$3,845 SGD
View
B+
Retailer 3
-
$3,997 SGD
View
Final sale: no returns
B+
Retailer 4
-
$4,036 SGD
View
B
Retailer 5
-
$4,184 SGD
View
Retailer 6
-
$4,332 SGD
View
Price last confirmed 30 days ago
Retailer 7
-
$4,332 SGD
View
Price last confirmed 36 days ago
Retailer 8
-
$4,332 SGD
View
Price last confirmed 15 days ago
Retailer 9
-
$4,332 SGD
View
Price last confirmed 8 days ago
Retailer 10
-
$4,332 SGD
View
Price last confirmed 21 days ago
Retailer 11
-
$4,332 SGD
View
Price last confirmed 45 days ago
B
Retailer 12
-
$4,346 SGD
View
Retailer 13
-
$4,498 SGD
View
Price last confirmed 38 days ago
B
Retailer 14
-
$4,716 SGD
View
B
Retailer 15
-
$4,716 SGD
View
B
Retailer 16
-
$4,883 SGD
View
B
Retailer 17
-
$4,911 SGD
View
Retailer 18
-
$4,911 SGD
View
Price last confirmed 28 days ago
Retailer 19
-
$4,911 SGD
View
Price last confirmed 37 days ago
B
Retailer 20
-
$4,947 SGD
View
Retailer 21
-
$4,997 SGD
View
Price last confirmed 45 days ago
Retailer 22
-
$4,997 SGD
View
Price last confirmed 38 days ago
Retailer 23
-
$4,997 SGD
View
Price last confirmed 28 days ago
Retailer 24
-
$4,997 SGD
View
Price last confirmed 16 days ago
B
Retailer 25
-
$4,997 SGD
View
Retailer 26
-
$5,120 SGD
View
Price last confirmed 29 days ago
B
Retailer 27
-
$5,175 SGD
View
B
Retailer 28
-
$5,594 SGD
View
B
Retailer 29
-
$5,835 SGD
View
B
Retailer 30
-
$7,973 SGD
View
Retailer 31
-
$8,329 SGD
View
Price last confirmed 48 days ago
Retailer 32
-
$8,329 SGD
View
Price last confirmed 17 days ago
C
Retailer 33
-
$8,329 SGD
View
Most Expensive
NZ Jewellers
5139d971-50c4-4f32-ac7c-6bcbe1b82803 · Sep 30
$8,329 SGD
$6,499 USD
View
Price last confirmed 37 days ago
33 more retailers have this diamond
Prices start from $3,677 SGDSave up to $4,652 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
$3,677 SGD