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Oval|Natural|GIA

1.21ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 6462566598

Certificate GIA 6462566598

Diamond specifications and retailer prices

From $5,584 SGD
As of November 7, 2026
Save $3,166 SGD (36%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $11,821 SGD at NZ Jewellers · As of September 18, 2026
View at NZ Jewellers

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 6462566598. Listed at 20 retailers as of November 7, 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. 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
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6462566598
Dimensions8.28 × 6.08 × 3.75 mm
L/W Ratio1.36
Cert comments
ADDITIONAL TWINNING WISPS
Top View
8.28 mm6.08 mm1.21 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6462566598
Side View
Table 55.0%CrownGirdle: ThickPavilionCulet: NoneDepth 61.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 7
Current: $7,145 SGD|Low: $5,584 SGD|High: $11,393 SGD|Avg: $7,403 SGD
Retailer 1
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
November 7, 2026
Retailer 8$5,584 SGD
Retailer 5$5,671 SGD
Retailer 9$6,190 SGD
Retailer 10$6,403 SGD
Retailer 16$6,403 SGD
Retailer 3$6,777 SGD
Retailer 15$6,827 SGD
Retailer 11$6,901 SGD
Retailer 6$7,078 SGD
Retailer 1$7,145 SGD
Retailer 7$7,314 SGD
Retailer 13$7,518 SGD
Retailer 4$8,000 SGD
Retailer 2$8,623 SGD
Retailer 12$8,749 SGD
Retailer 14$11,196 SGD

35 data points across 16 retailers

20 retailers$5,584 SGD to $8,749 SGD

B
Cheapest Retailer
-
$5,584 SGD
Retailer 2
-
$5,671 SGD
View
Price last confirmed 10 days ago
Retailer 3
-
$6,190 SGD
View
B
Retailer 4
-
$6,403 SGD
View
Retailer 5
-
$6,403 SGD
View
Price last confirmed 50 days ago
Retailer 6
-
$6,403 SGD
View
Price last confirmed 26 days ago
B
Retailer 7
-
$6,403 SGD
View
B
Retailer 8
-
$6,777 SGD
View
B
Retailer 9
-
$6,827 SGD
View
B
Retailer 10
-
$6,901 SGD
View
Retailer 11
-
$7,078 SGD
View
Price last confirmed 29 days ago
Retailer 12
-
$7,145 SGD
View
B
Retailer 13
-
$7,314 SGD
View
Retailer 14
-
$7,388 SGD
View
Price last confirmed 49 days ago
B
Retailer 15
-
$7,518 SGD
View
Retailer 16
-
$8,000 SGD
View
Price last confirmed 7 days ago
B
Retailer 17
-
$8,623 SGD
View
B
Retailer 18
-
$8,749 SGD
View
Retailer 19
-
$11,196 SGD
View
Price under review
Most Expensive
NZ Jewellers
5406ca4d-7386-47a6-86b8-ee9fef31e9e4 · Sep 18
$11,821 SGD
$9,224 USD
View
Price under review
19 more retailers have this diamond
Prices start from $5,584 SGDSave up to $3,166 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
$5,584 SGD