Oval|Natural|GIA

1.21ct G SI1 Oval Natural Diamond

VG • G/SI1 • GIA 1538451120

Certificate GIA 1538451120

Diamond specifications and retailer prices

From $4,155 SGD
As of November 7, 2026
Save $2,357 SGD (36%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $7,472 SGD at MOH London · As of October 19, 2026
View at MOH London

About this 1.21ct natural oval diamond

This 1.21ct natural oval sits in the classic one-carat band, graded G 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 1538451120. Listed at 21 retailers as of November 6, 2026, with a 57% 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

1.21
Carat
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle39°
OriginNatural
Grading LabGIA
CertificateGIA 1538451120
Dimensions8.49 × 5.92 × 3.70 mm
L/W Ratio1.43
Girdle conditionFaceted
Top View
8.49 mm5.92 mm1.21 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1538451120
Side View
Table 57.0%CrownGirdle: STK-THKPavilion 39°Culet: NoneDepth 62.5%

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 7
Current: $7,472 SGD|Low: $3,248 SGD|High: $7,676 SGD|Avg: $4,514 SGD|-2.7%
MOH London
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
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
November 7, 2026
Retailer 8$3,248 SGD
Retailer 7$3,396 SGD
Retailer 5$3,403 SGD
Retailer 6$3,446 SGD
Retailer 10$3,717 SGD
Retailer 12$3,909 SGD
Retailer 9$3,990 SGD
Retailer 3$4,106 SGD
Retailer 21$4,155 SGD
Retailer 14$4,178 SGD
Retailer 11$4,566 SGD
Retailer 16$4,571 SGD
Retailer 2$4,591 SGD
Retailer 15$4,789 SGD
Retailer 23$5,167 SGD
Retailer 4$5,363 SGD
Retailer 20$5,745 SGD
Retailer 17$5,947 SGD
Retailer 18$5,947 SGD
Retailer 19$6,152 SGD
Retailer 13$6,512 SGD
Retailer 22$6,610 SGD
MOH London$7,472 SGD

24 data points across 23 retailers

21 retailers$4,155 SGD to $6,512 SGD

Retailer 1
-
$3,248 SGD
Price last confirmed 13 days ago
Retailer 2
-
$3,396 SGD
View
Price last confirmed 13 days ago
Retailer 3
-
$3,403 SGD
View
Price last confirmed 17 days ago
Retailer 4
-
$3,446 SGD
View
Price last confirmed 17 days ago
Retailer 5
-
$3,909 SGD
View
Price last confirmed 14 days ago
Retailer 6
-
$4,106 SGD
View
Price last confirmed 15 days ago
B+
Retailer 7
-
$4,155 SGD
View
Retailer 8
-
$4,178 SGD
View
Price last confirmed 15 days ago
Retailer 9
-
$4,566 SGD
View
Price last confirmed 17 days ago
B+
Retailer 10
-
$4,571 SGD
View
Retailer 11
-
$4,589 SGD
View
Price last confirmed 33 days ago
B
Retailer 12
-
$4,591 SGD
View
Retailer 13
-
$4,789 SGD
View
Price last confirmed 34 days ago
Retailer 14
-
$5,363 SGD
View
Price last confirmed 16 days ago
B
Retailer 15
-
$5,745 SGD
View
B
Retailer 16
-
$5,947 SGD
View
B
Retailer 17
-
$5,947 SGD
View
B
Retailer 18
-
$6,152 SGD
View
B
Retailer 19
-
$6,512 SGD
View
Retailer 20
-
$6,610 SGD
View
Price last confirmed 15 days ago
Most Expensive
MOH London
0D4297223 · Oct 19
$7,472 SGD
£4,591 GBP
View
Price last confirmed 19 days ago
20 more retailers have this diamond
Prices start from $4,155 SGDSave up to $2,357 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+
1.21ct Oval
$4,155 SGD