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Oval|Natural|GIA

1.21ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 6545974485

Certificate GIA 6545974485

Diamond specifications and retailer prices

From $3,463 SGD
As of November 6, 2026
Save $5,025 SGD (59%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $8,488 SGD at MOH London · As of November 2, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545974485. Listed at 20 retailers as of November 2, 2026, with prices from $3,463 to $8,488, a $5,025 spread on the same certified stone. MOH London lists it at $8,488. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.21
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6545974485
Dimensions8.50 × 6.04 × 3.53 mm
L/W Ratio1.41
Top View
8.50 mm6.04 mm1.21 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6545974485
Side View
Table 56.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 58.5%

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 6
Current: $8,488 SGD|Low: $2,509 SGD|High: $8,534 SGD|Avg: $3,969 SGD|+40.8%
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
November 6, 2026
Retailer 7$2,509 SGD
Retailer 5$2,779 SGD
Retailer 9$2,850 SGD
Retailer 4$2,928 SGD
Retailer 6$2,978 SGD
Retailer 8$3,168 SGD
Retailer 10$3,230 SGD
Retailer 12$3,818 SGD
Retailer 3$4,082 SGD
Retailer 19$4,319 SGD
Retailer 16$4,369 SGD
Retailer 20$4,422 SGD
Retailer 17$5,001 SGD
Retailer 2$5,056 SGD
Retailer 14$5,140 SGD
Retailer 11$5,157 SGD
Retailer 15$5,742 SGD
Retailer 18$5,849 SGD
Retailer 13$6,195 SGD
MOH London$8,488 SGD

33 data points across 20 retailers

20 retailers$3,463 SGD to $8,488 SGD

Retailer 1
-
$2,509 SGD
Price last confirmed 15 days ago
Retailer 2
-
$2,779 SGD
View
Price last confirmed 14 days ago
Retailer 3
-
$2,928 SGD
View
Price last confirmed 15 days ago
Retailer 4
-
$2,978 SGD
View
Price last confirmed 16 days ago
Retailer 5
-
$3,230 SGD
View
Price last confirmed 16 days ago
B+
Retailer 6
-
$3,463 SGD
View
Retailer 7
-
$3,818 SGD
View
Price last confirmed 30 days ago
B+
Retailer 8
-
$4,082 SGD
View
B
Retailer 9
-
$4,319 SGD
View
B
Retailer 10
-
$4,369 SGD
View
B
Retailer 11
-
$4,422 SGD
View
B
Retailer 12
-
$5,001 SGD
View
B+
Retailer 13
-
$5,056 SGD
View
B
Retailer 14
-
$5,140 SGD
View
Retailer 15
-
$5,157 SGD
View
Price last confirmed 21 days ago
B
Retailer 16
-
$5,742 SGD
View
B
Retailer 17
-
$5,849 SGD
View
B
Retailer 18
-
$6,195 SGD
View
Retailer 19
-
$7,164 SGD
View
Price last confirmed 42 days ago
Most Expensive
C
MOH London
7B76E8ED6 · Nov 2
$8,488 SGD
£5,215 GBP
View
19 more retailers have this diamond
Prices start from $3,463 SGDSave up to $5,025 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
$3,463 SGD