CaratHunter
Plans
Oval|Natural|GIA

1.21ct E SI1 Oval Natural Diamond

GD • E/SI1 • GIA 2557969790

Certificate GIA 2557969790

Diamond specifications and retailer prices

From $4,787 AUD
As of November 6, 2026
Save $5,440 AUD (53%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $10,227 AUD 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 E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2557969790. Listed at 8 retailers as of November 2, 2026, with prices from $4,787 to $10,227, a $5,440 spread on the same certified stone. MOH London lists it at $10,227. 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
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.64°
Pavilion angle36.31°
OriginNatural
Grading LabGIA
CertificateGIA 2557969790
Dimensions8.22 × 5.83 × 3.72 mm
L/W Ratio1.41
Girdle conditionFaceted
Key to symbols
Crystal, Feather, Needle
Top View
8.22 mm5.83 mm1.21 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557969790
Side View
Table 61.0%Crown 41.64°Girdle: STK-THKPavilion 36.31°Culet: NoneDepth 63.8%

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 6
Current: $10,227 AUD|Low: $4,750 AUD|High: $10,349 AUD|Avg: $7,010 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5$4,787 AUD
Retailer 3$5,584 AUD
Retailer 8$6,034 AUD
Retailer 2$6,158 AUD
Retailer 6$6,765 AUD
Retailer 9$6,808 AUD
Retailer 4$7,264 AUD
Retailer 7$9,012 AUD
MOH London$10,227 AUD

36 data points across 9 retailers

8 retailers$4,787 AUD to $10,227 AUD

A
Cheapest Retailer
-
$4,787 AUD
B+
Retailer 2
-
$5,584 AUD
View
B+
Retailer 3
-
$6,158 AUD
View
B
Retailer 4
-
$6,765 AUD
View
B
Retailer 5
-
$6,808 AUD
View
B
Retailer 6
-
$7,264 AUD
View
B
Retailer 7
-
$9,195 AUD
View
Most Expensive
B
MOH London
CBDC5735A · Nov 2
$10,227 AUD
£5,533 GBP
View
7 more retailers have this diamond
Prices start from $4,787 AUDSave up to $5,440 AUD

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
$4,787 AUD