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Marquise|Natural|GIA

1.20ct I VS1 Marquise Natural Diamond

ID • I/VS1 • GIA 3555035951

Certificate GIA 3555035951

Diamond specifications and retailer prices

From $9,159 AUD
As of November 6, 2026
Save $9,160 AUD (50%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $18,319 AUD at NZ Jewellers · As of November 5, 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 I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3555035951. Listed at 15 retailers as of November 5, 2026, with prices from $9,159 to $18,319, a $9,160 spread on the same certified stone. NZ Jewellers lists it at $18,319. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
I
Colour
VS1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3555035951
Dimensions10.75 × 5.66 × 3.30 mm
L/W Ratio1.90
Top View
10.75 mm5.66 mm1.20 ctI / VS1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3555035951
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 58.3%

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 6
Current: $11,636 AUD|Low: $9,159 AUD|High: $15,448 AUD|Avg: $11,413 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 2$9,159 AUD
Retailer 3$9,747 AUD
Retailer 6$9,747 AUD
Retailer 5$10,226 AUD
Retailer 7$10,409 AUD
Retailer 10$10,630 AUD
Retailer 8$11,148 AUD
Retailer 1$11,636 AUD
Retailer 9$13,363 AUD
Retailer 4$15,181 AUD

35 data points across 10 retailers

15 retailers$9,159 AUD to $18,319 AUD

B+
Cheapest Retailer
-
$9,159 AUD
Final sale: no returns
B+
Retailer 2
-
$9,376 AUD
View
B+
Retailer 3
-
$9,747 AUD
View
B+
Retailer 4
-
$9,747 AUD
View
B
Retailer 5
-
$10,108 AUD
View
B+
Retailer 6
-
$10,226 AUD
View
B+
Retailer 7
-
$10,409 AUD
View
Retailer 8
-
$10,630 AUD
View
Price last confirmed 16 days ago
B
Retailer 9
-
$11,148 AUD
View
B
Retailer 10
-
$11,172 AUD
View
B+
Retailer 11
-
$11,636 AUD
View
B
Retailer 12
-
$11,844 AUD
View
B
Retailer 13
-
$13,363 AUD
View
B
Retailer 14
-
$15,181 AUD
View
Most Expensive
B
NZ Jewellers
cee86d02-3d47-4cc2-9cbd-634bd9ba9b9d · Nov 5
$18,319 AUD
$12,587 USD
View
14 more retailers have this diamond
Prices start from $9,159 AUDSave up to $9,160 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
$9,159 AUD