Oval|Natural|GIA

1.21ct D SI1 Oval Natural Diamond

ID • D/SI1 • GIA 5536189042

Certificate GIA 5536189042

Diamond specifications and retailer prices

From $3,605 USD
As of November 5, 2026
Save $3,924 USD (52%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $7,529 USD at MOH London · As of November 4, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5536189042. Listed at 13 retailers as of November 4, 2026, with prices from $3,605 to $7,529, a $3,924 spread on the same certified stone. MOH London lists it at $7,529. 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
D
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle32.93°
OriginNatural
Grading LabGIA
CertificateGIA 5536189042
Dimensions8.81 × 6.06 × 3.70 mm
L/W Ratio1.45
Top View
8.81 mm6.06 mm1.21 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5536189042
Side View
Table 56.0%Crown 32.93°Girdle: MED-THKPavilionCulet: NoneDepth 61.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $7,529 USD|Low: $3,605 USD|High: $7,639 USD|Avg: $5,053 USD|-1.3%
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
November 6, 2026
Retailer 3$3,605 USD
Retailer 13$3,778 USD
Retailer 9$4,060 USD
Retailer 11$4,243 USD
Retailer 4$4,294 USD
Retailer 10$4,500 USD
Retailer 12$4,500 USD
Retailer 7$4,638 USD
Retailer 2$4,650 USD
Retailer 5$4,777 USD
Retailer 6$5,332 USD
Retailer 8$5,782 USD
MOH London$7,529 USD

44 data points across 13 retailers

13 retailers$3,605 USD to $7,529 USD

A
Cheapest Retailer
-
$3,605 USD
B+
Retailer 2
-
$3,778 USD
View
B+
Retailer 3
-
$4,060 USD
View
B+
Retailer 4
-
$4,243 USD
View
Retailer 5
-
$4,294 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$4,500 USD
View
B+
Retailer 7
-
$4,500 USD
View
B+
Retailer 8
-
$4,638 USD
View
B+
Retailer 9
-
$4,650 USD
View
Retailer 10
-
$4,777 USD
View
Price last confirmed 28 days ago
B+
Retailer 11
-
$5,332 USD
View
B
Retailer 12
-
$5,782 USD
View
Most Expensive
B
MOH London
13A48B8EE · Nov 4
$7,529 USD
£5,928 GBP
View
12 more retailers have this diamond
Prices start from $3,605 USDSave up to $3,924 USD

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.

A
1.21ct Oval
$3,605 USD