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Marquise|Natural|GIA

1.20ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 7551045067

Certificate GIA 7551045067

Diamond specifications and retailer prices

From $5,828 NZD
As of November 6, 2026
Save $6,492 NZD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $12,321 NZD at MOH London · As of November 4, 2026
View at MOH London

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 7551045067. Listed at 15 retailers as of November 4, 2026, with prices from $5,828 to $12,321, a $6,492 spread on the same certified stone. MOH London lists it at $12,321. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7551045067
Dimensions10.22 × 5.49 × 3.61 mm
L/W Ratio1.86
Girdle conditionFaceted
Top View
10.22 mm5.49 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551045067
Side View
Table 62.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 65.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $12,321 NZD|Low: $5,311 NZD|High: $12,502 NZD|Avg: $7,537 NZD|-1.4%
MOH London
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 7, 2026
Retailer 11$5,311 NZD
Retailer 7$5,323 NZD
Retailer 12$5,498 NZD
Retailer 20$5,828 NZD
Retailer 8$5,872 NZD
Retailer 3$6,398 NZD
Retailer 10$6,566 NZD
Retailer 21$6,597 NZD
Retailer 16$6,745 NZD
Retailer 19$6,949 NZD
Retailer 18$7,721 NZD
Retailer 2$7,932 NZD
Retailer 4$8,009 NZD
Retailer 5$8,009 NZD
Retailer 6$8,280 NZD
Retailer 15$8,311 NZD
Retailer 14$8,733 NZD
Retailer 13$8,751 NZD
Retailer 9$9,020 NZD
Retailer 17$11,323 NZD
MOH London$12,321 NZD

29 data points across 21 retailers

15 retailers$5,828 NZD to $12,321 NZD

Retailer 1
-
$5,311 NZD
Price last confirmed 66 days ago
B
Retailer 2
-
$5,828 NZD
View
B
Retailer 3
-
$6,398 NZD
View
B
Retailer 4
-
$6,597 NZD
View
B
Retailer 5
-
$6,745 NZD
View
B
Retailer 6
-
$6,949 NZD
View
B
Retailer 7
-
$7,721 NZD
View
B
Retailer 8
-
$7,932 NZD
View
B
Retailer 9
-
$8,009 NZD
View
B
Retailer 10
-
$8,009 NZD
View
B
Retailer 11
-
$8,280 NZD
View
B
Retailer 12
-
$8,311 NZD
View
B
Retailer 13
-
$8,751 NZD
View
B
Retailer 14
-
$11,323 NZD
View
Most Expensive
B
MOH London
1B08443EC · Nov 4
$12,321 NZD
£5,378 GBP
View
14 more retailers have this diamond
Prices start from $5,828 NZDSave up to $6,492 NZD

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
$5,828 NZD