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Oval|Natural|GIA

1.21ct D SI1 Oval Natural Diamond

ID • D/SI1 • GIA 5536189042

Certificate GIA 5536189042

Diamond specifications and retailer prices

From $6,503 NZD
As of November 5, 2026
Save $7,078 NZD (52%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $13,581 NZD 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 $6,503 to $13,581, a $7,078 spread on the same certified stone. MOH London lists it at $13,581. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $13,581 NZD|Low: $6,503 NZD|High: $13,780 NZD|Avg: $9,115 NZD|-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$6,503 NZD
Retailer 13$6,815 NZD
Retailer 9$7,324 NZD
Retailer 11$7,654 NZD
Retailer 4$7,746 NZD
Retailer 10$8,118 NZD
Retailer 12$8,118 NZD
Retailer 7$8,366 NZD
Retailer 2$8,388 NZD
Retailer 5$8,617 NZD
Retailer 6$9,618 NZD
Retailer 8$10,430 NZD
MOH London$13,581 NZD

44 data points across 13 retailers

13 retailers$6,503 NZD to $13,581 NZD

A
Cheapest Retailer
-
$6,503 NZD
B+
Retailer 2
-
$6,815 NZD
View
B+
Retailer 3
-
$7,324 NZD
View
B+
Retailer 4
-
$7,654 NZD
View
Retailer 5
-
$7,746 NZD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$8,118 NZD
View
B+
Retailer 7
-
$8,118 NZD
View
B+
Retailer 8
-
$8,366 NZD
View
B+
Retailer 9
-
$8,388 NZD
View
Retailer 10
-
$8,617 NZD
View
Price last confirmed 28 days ago
B+
Retailer 11
-
$9,618 NZD
View
B
Retailer 12
-
$10,430 NZD
View
Most Expensive
B
MOH London
13A48B8EE · Nov 4
$13,581 NZD
£5,928 GBP
View
12 more retailers have this diamond
Prices start from $6,503 NZDSave up to $7,078 NZD

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
$6,503 NZD