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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 $2,150 USD
As of November 1, 2026
Save $3,462 USD (62%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $5,612 USD at NZ Jewellers · As of October 30, 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 October 30, 2026, with prices from $2,150 to $5,612, a $3,462 spread on the same certified stone. NZ Jewellers lists it at $5,612. 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
Color
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: $5,612 USD|Low: $2,134 USD|High: $5,722 USD|Avg: $2,881 USD|-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 2, 2026
Retailer 14$2,134 USD
Retailer 16$2,150 USD
Retailer 9$2,245 USD
Retailer 3$2,259 USD
Retailer 19$2,422 USD
Retailer 6$2,432 USD
Retailer 8$2,432 USD
Retailer 12$2,437 USD
Retailer 21$2,440 USD
Retailer 10$2,474 USD
Retailer 5$2,478 USD
Retailer 7$2,544 USD
Retailer 2$2,618 USD
Retailer 20$2,719 USD
Retailer 11$2,806 USD
Retailer 15$2,846 USD
Retailer 18$3,300 USD
Retailer 13$3,352 USD
Retailer 4$4,160 USD
Retailer 17$4,703 USD
NZ Jewellers$5,612 USD

20 data points across 21 retailers

23 retailers$2,150 USD to $5,612 USD

Retailer 1
-
$2,134 USD
₹203,216 INR
Price last confirmed 12 days ago
A
Retailer 2
-
$2,150 USD
View
B+
Retailer 3
-
$2,245 USD
View
Final sale: no returns
A
Retailer 4
-
$2,259 USD
View
A
Retailer 5
-
$2,422 USD
View
A
Retailer 6
-
$2,432 USD
View
A
Retailer 7
-
$2,432 USD
View
B+
Retailer 8
-
$2,437 USD
View
B+
Retailer 9
-
$2,440 USD
View
B+
Retailer 10
-
$2,474 USD
View
B+
Retailer 11
-
$2,478 USD
View
B+
Retailer 12
-
$2,544 USD
View
B+
Retailer 13
-
$2,618 USD
£2,062 GBP
View
B+
Retailer 14
-
$2,719 USD
View
B+
Retailer 15
-
$2,806 USD
View
B+
Retailer 16
-
$2,846 USD
£2,241 GBP
View
B+
Retailer 17
-
$2,859 USD
A$4,398 AUD
View
Retailer 18
-
$3,067 USD
A$4,718 AUD
View
Price last confirmed 25 days ago
B
Retailer 19
-
$3,300 USD
ZAR 53,305 ZAR
View
B+
Retailer 20
-
$3,352 USD
€3,192 EUR
View
B
Retailer 21
-
$4,160 USD
View
B
Retailer 22
-
$4,703 USD
£3,703 GBP
View
Most Expensive
B
NZ Jewellers
e078e873-9f50-4920-a8bd-3bfb5172cd0b · Oct 30
$5,612 USD
View
22 more retailers have this diamond
Prices start from $2,150 USDSave up to $3,462 USD

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
$2,150 USD