Marquise|Natural|GIA

1.21ct H SI2 Marquise Natural Diamond

GD • H/SI2 • GIA 2557298982

Certificate GIA 2557298982

Diamond specifications and retailer prices

From $4,911 AUD
As of November 6, 2026
Save $1,448 AUD (23%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $9,847 AUD at NZ Jewellers · As of October 14, 2026
View at NZ Jewellers

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2557298982. Listed at 13 retailers as of November 6, 2026, with a 29% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.99°
Pavilion angle41.28°
OriginNatural
Grading LabGIA
CertificateGIA 2557298982
Dimensions9.88 × 5.42 × 3.67 mm
L/W Ratio1.82
Culet sizeNone
Top View
9.88 mm5.42 mm1.21 ctH / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557298982
Side View
Table 60.0%Crown 43.99°Girdle: STK-VTKPavilion 41.28°Culet: NoneDepth 67.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,359 AUD|Low: $2,941 AUD|High: $9,846 AUD|Avg: $5,666 AUD|-3.0%
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 6, 2026
Retailer 8$2,941 AUD
Retailer 5$4,433 AUD
Retailer 11$4,439 AUD
Retailer 2$4,547 AUD
Retailer 14$4,852 AUD
Retailer 7$5,074 AUD
Retailer 16$5,130 AUD
Retailer 10$5,613 AUD
Retailer 9$5,736 AUD
Retailer 3$6,069 AUD
Retailer 13$6,069 AUD
Retailer 15$6,273 AUD
Retailer 1$6,359 AUD
Retailer 4$6,399 AUD
Retailer 6$6,621 AUD
Retailer 12$9,504 AUD

22 data points across 16 retailers

13 retailers$4,911 AUD to $6,359 AUD

Retailer 1
-
$4,439 AUD
Price last confirmed 20 days ago
Retailer 2
-
$4,547 AUD
View
Price last confirmed 18 days ago
Retailer 3
-
$4,852 AUD
View
Price last confirmed 20 days ago
B+
Retailer 4
-
$4,911 AUD
View
Retailer 5
-
$5,120 AUD
View
Price last confirmed 24 days ago
Retailer 6
-
$5,130 AUD
View
Price last confirmed 20 days ago
Retailer 7
-
$5,270 AUD
View
Price last confirmed 26 days ago
Retailer 8
-
$5,472 AUD
View
Price last confirmed 37 days ago
Retailer 9
-
$5,736 AUD
View
Price last confirmed 18 days ago
B
Retailer 10
-
$6,359 AUD
View
Retailer 11
-
$6,399 AUD
View
Price last confirmed 23 days ago
Retailer 12
-
$9,504 AUD
View
Price last confirmed 19 days ago
Most Expensive
NZ Jewellers
bd0f54de-5bda-479c-8a67-591220e7a51e · Oct 14
$9,847 AUD
$6,766 USD
View
Price last confirmed 23 days ago
12 more retailers have this diamond
Prices start from $4,911 AUDSave up to $1,448 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.

B+
1.21ct Marquise
$4,911 AUD