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Marquise|Natural|GIA

1.20ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 7552545761

Certificate GIA 7552545761

Diamond specifications and retailer prices

From $6,947 AUD
As of November 5, 2026
Save $2,902 AUD (29%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $13,173 AUD at NZ Jewellers · As of September 20, 2026
View at NZ Jewellers

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7552545761. Listed at 21 retailers as of November 5, 2026, with a 42% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7552545761
Dimensions10.41 × 5.48 × 3.47 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Cloud, Crystal, Feather, Cavity
Top View
10.41 mm5.48 mm1.20 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7552545761
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.3%

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 5
Current: $9,849 AUD|Low: $5,718 AUD|High: $12,695 AUD|Avg: $8,138 AUD|+28.5%
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 7, 2026
Retailer 14$5,718 AUD
Retailer 2$6,021 AUD
Retailer 3$6,603 AUD
Retailer 6$6,778 AUD
Retailer 9$6,947 AUD
Retailer 5$7,099 AUD
Retailer 13$7,219 AUD
Retailer 4$7,331 AUD
Retailer 10$7,456 AUD
Retailer 11$7,638 AUD
Retailer 8$7,939 AUD
Retailer 12$8,644 AUD
Retailer 16$9,283 AUD
Retailer 1$9,849 AUD
Retailer 15$11,303 AUD
Retailer 7$12,611 AUD

30 data points across 16 retailers

21 retailers$6,947 AUD to $9,849 AUD

Retailer 1
-
$5,718 AUD
Price last confirmed 13 days ago
Retailer 2
-
$6,021 AUD
View
Price last confirmed 16 days ago
Retailer 3
-
$6,603 AUD
View
Price last confirmed 16 days ago
Retailer 4
-
$6,778 AUD
View
Price last confirmed 15 days ago
B+
Retailer 5
-
$6,947 AUD
View
B
Retailer 6
-
$7,182 AUD
View
Retailer 7
-
$7,219 AUD
View
Price last confirmed 14 days ago
Retailer 8
-
$7,331 AUD
View
Price last confirmed 15 days ago
B
Retailer 9
-
$7,456 AUD
View
B
Retailer 10
-
$7,638 AUD
View
B
Retailer 11
-
$7,843 AUD
View
Retailer 12
-
$7,877 AUD
View
Price last confirmed 46 days ago
Retailer 13
-
$7,877 AUD
View
Price last confirmed 22 days ago
Retailer 14
-
$7,939 AUD
View
Price last confirmed 29 days ago
Retailer 15
-
$8,099 AUD
View
Price last confirmed 20 days ago
Retailer 16
-
$9,088 AUD
View
Price last confirmed 46 days ago
Retailer 17
-
$9,283 AUD
View
Price last confirmed 16 days ago
B
Retailer 18
-
$9,849 AUD
View
Retailer 19
-
$11,303 AUD
View
Price last confirmed 15 days ago
Retailer 20
-
$12,611 AUD
View
Price last confirmed 17 days ago
Most Expensive
NZ Jewellers
756ae5f0-3390-4d26-924a-6051f73935bf · Sep 20
$13,173 AUD
$9,051 USD
View
Price last confirmed 47 days ago
20 more retailers have this diamond
Prices start from $6,947 AUDSave up to $2,902 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+
1.20ct Marquise
$6,947 AUD