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Oval|Natural|GIA

1.20ct M SI1 Oval Natural Diamond

ID • M/SI1 • GIA 2554665601

Certificate GIA 2554665601

Diamond specifications and retailer prices

From $1,640 AUD
As of November 6, 2026
Save $3,445 AUD (68%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,085 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural oval diamond

This 1.2ct natural oval sits in the classic one-carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2554665601. Listed at 16 retailers as of November 5, 2026, with prices from $1,640 to $5,085, a $3,445 spread on the same certified stone. NZ Jewellers lists it at $5,085. 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

1.20
Carat
M
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554665601
Dimensions8.48 × 5.78 × 3.66 mm
L/W Ratio1.47
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Indented Natural, Natural
Top View
8.48 mm5.78 mm1.20 ctM / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554665601
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 63.3%

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: $5,085 AUD|Low: $1,640 AUD|High: $5,317 AUD|Avg: $2,432 AUD|-4.4%
NZ Jewellers
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 6, 2026
Retailer 9$1,640 AUD
Retailer 12$1,870 AUD
Retailer 7$1,924 AUD
Retailer 8$1,969 AUD
Retailer 10$2,049 AUD
Retailer 4$2,084 AUD
Retailer 6$2,084 AUD
Retailer 5$2,182 AUD
Retailer 15$2,224 AUD
Retailer 3$2,227 AUD
Retailer 16$2,281 AUD
Retailer 2$2,300 AUD
Retailer 14$2,406 AUD
Retailer 11$2,544 AUD
Retailer 13$2,904 AUD
NZ Jewellers$5,085 AUD

28 data points across 16 retailers

16 retailers$1,640 AUD to $5,085 AUD

A
Cheapest Retailer
-
$1,640 AUD
A
Retailer 2
-
$1,870 AUD
View
B+
Retailer 3
-
$1,924 AUD
View
Final sale: no returns
A
Retailer 4
-
$1,969 AUD
View
A
Retailer 5
-
$2,049 AUD
View
Retailer 6
-
$2,084 AUD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$2,084 AUD
View
B+
Retailer 8
-
$2,182 AUD
View
B+
Retailer 9
-
$2,224 AUD
View
B+
Retailer 10
-
$2,227 AUD
View
B+
Retailer 11
-
$2,281 AUD
View
B+
Retailer 12
-
$2,300 AUD
View
B+
Retailer 13
-
$2,406 AUD
View
B+
Retailer 14
-
$2,544 AUD
View
B+
Retailer 15
-
$2,904 AUD
View
Most Expensive
B
NZ Jewellers
aa946c97-4cf3-4d5d-8f83-2b9f79746129 · Nov 5
$5,085 AUD
$3,494 USD
View
15 more retailers have this diamond
Prices start from $1,640 AUDSave up to $3,445 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
1.20ct Oval
$1,640 AUD