Marquise|Natural|GIA

1.20ct G SI2 Marquise Natural Diamond

VG • G/SI2 • GIA 5553085902

Certificate GIA 5553085902

Diamond specifications and retailer prices

From $5,186 AUD
SGD 4,911 SGD
As of October 31, 2026
Save $554 AUD (10%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $9,886 AUD at NZ Jewellers · As of October 17, 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5553085902. Listed at 18 retailers as of October 31, 2026, with a relatively tight 11% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.20
Carat
G
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5553085902
Dimensions9.99 × 5.49 × 3.53 mm
L/W Ratio1.82
Top View
9.99 mm5.49 mm1.20 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5553085902
Side View
Table 65.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.2%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $9,568 AUD|Low: $4,237 AUD|High: $10,023 AUD|Avg: $6,307 AUD|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 22, 2026
Retailer 11$4,237 AUD
Retailer 6$4,460 AUD
Retailer 12$5,088 AUD
Retailer 9$5,186 AUD
Retailer 10$5,237 AUD
Retailer 3$5,399 AUD
Retailer 5$5,759 AUD
Retailer 2$5,884 AUD
Retailer 4$5,922 AUD
Retailer 7$6,374 AUD
Retailer 8$9,539 AUD
Retailer 1$9,568 AUD

33 data points across 12 retailers

18 retailers$5,186 AUD to $5,739 AUD

Retailer 1
-
$4,237 AUD
HK$23,200 HKD
Price last confirmed 11 days ago
Retailer 2
-
$4,460 AUD
₹297,691 INR
View
Price last confirmed 13 days ago
Retailer 3
-
$5,088 AUD
$3,566 USD
View
Price last confirmed 12 days ago
B+
Retailer 4
-
$5,186 AUD
SGD 4,911 SGD
View
Retailer 5
-
$5,399 AUD
SGD 5,113 SGD
View
Price last confirmed 12 days ago
B+
Retailer 6
-
$5,441 AUD
$3,813 USD
View
Retailer 7
-
$5,673 AUD
$3,976 USD
View
Price last confirmed 17 days ago
Retailer 8
-
$5,673 AUD
$3,976 USD
View
Price last confirmed 15 days ago
Retailer 9
-
$5,673 AUD
$3,976 USD
View
Price last confirmed 17 days ago
B+
Retailer 10
-
$5,739 AUD
View
Retailer 11
-
$5,759 AUD
£3,178 GBP
View
Price last confirmed 12 days ago
Retailer 12
-
$5,884 AUD
$4,123 USD
View
Price last confirmed 15 days ago
Retailer 13
-
$5,922 AUD
$4,150 USD
View
Price last confirmed 12 days ago
Retailer 14
-
$6,547 AUD
$4,588 USD
View
Price last confirmed 14 days ago
Retailer 15
-
$6,833 AUD
$4,789 USD
View
Price last confirmed 48 days ago
Retailer 16
-
$9,539 AUD
£5,264 GBP
View
Price last confirmed 12 days ago
Retailer 17
-
$9,568 AUD
£5,280 GBP
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
abfb3ed8-bbd6-49a0-9590-4f26f109ea54 · Oct 17
$9,886 AUD
$6,928 USD
View
Price last confirmed 16 days ago
17 more retailers have this diamond
Prices start from $5,186 AUDSave up to $554 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
$5,186 AUD