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Marquise|Natural|GIA

1.20ct J SI1 Marquise Natural Diamond

ID • J/SI1 • GIA 6552516815

Certificate GIA 6552516815

Diamond specifications and retailer prices

From $3,068 AUD
$2,150 USD
As of November 1, 2026
Save $4,940 AUD (62%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $8,008 AUD at NZ Jewellers · As of November 3, 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 J 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 6552516815. Listed at 23 retailers as of November 1, 2026, with prices from $3,068 to $8,008, a $4,940 spread on the same certified stone. NZ Jewellers lists it at $8,008. 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
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6552516815
Dimensions10.47 × 5.51 × 3.50 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Indented Natural, Needle, Extra Facet
Top View
10.47 mm5.51 mm1.20 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6552516815
Side View
Table 61.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 63.6%

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 1
Current: $8,008 AUD|Low: $3,045 AUD|High: $8,165 AUD|Avg: $4,112 AUD|-1.9%
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 3, 2026
Retailer 14$3,045 AUD
Retailer 16$3,068 AUD
Retailer 9$3,203 AUD
Retailer 3$3,223 AUD
Retailer 19$3,456 AUD
Retailer 6$3,470 AUD
Retailer 8$3,470 AUD
Retailer 12$3,477 AUD
Retailer 21$3,482 AUD
Retailer 10$3,530 AUD
Retailer 5$3,535 AUD
Retailer 7$3,630 AUD
Retailer 13$3,736 AUD
Retailer 20$3,880 AUD
Retailer 11$4,004 AUD
Retailer 2$4,094 AUD
Retailer 18$4,708 AUD
Retailer 15$4,782 AUD
Retailer 4$5,936 AUD
Retailer 17$6,710 AUD
NZ Jewellers$8,008 AUD

21 data points across 21 retailers

23 retailers$3,068 AUD to $8,008 AUD

Retailer 1
-
$3,045 AUD
₹203,216 INR
Price last confirmed 13 days ago
A
Retailer 2
-
$3,068 AUD
$2,150 USD
View
B+
Retailer 3
-
$3,203 AUD
$2,245 USD
View
Final sale: no returns
A
Retailer 4
-
$3,223 AUD
$2,259 USD
View
A
Retailer 5
-
$3,456 AUD
$2,422 USD
View
A
Retailer 6
-
$3,470 AUD
$2,432 USD
View
A
Retailer 7
-
$3,470 AUD
$2,432 USD
View
B+
Retailer 8
-
$3,477 AUD
$2,437 USD
View
B+
Retailer 9
-
$3,482 AUD
$2,440 USD
View
B+
Retailer 10
-
$3,530 AUD
$2,474 USD
View
B+
Retailer 11
-
$3,535 AUD
$2,478 USD
View
B+
Retailer 12
-
$3,630 AUD
$2,544 USD
View
B+
Retailer 13
-
$3,736 AUD
£2,062 GBP
View
B+
Retailer 14
-
$3,880 AUD
$2,719 USD
View
B+
Retailer 15
-
$4,004 AUD
$2,806 USD
View
B+
Retailer 16
-
$4,079 AUD
View
B+
Retailer 17
-
$4,094 AUD
£2,259 GBP
View
Retailer 18
-
$4,376 AUD
View
Price last confirmed 26 days ago
B
Retailer 19
-
$4,708 AUD
ZAR 53,305 ZAR
View
B+
Retailer 20
-
$4,782 AUD
€3,192 EUR
View
B
Retailer 21
-
$5,936 AUD
$4,160 USD
View
B
Retailer 22
-
$6,710 AUD
£3,703 GBP
View
Most Expensive
B
NZ Jewellers
e078e873-9f50-4920-a8bd-3bfb5172cd0b · Nov 3
$8,008 AUD
$5,612 USD
View
22 more retailers have this diamond
Prices start from $3,068 AUDSave up to $4,940 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 Marquise
$3,068 AUD