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Marquise|Natural|GIA

1.20ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 7541749455

Certificate GIA 7541749455

Diamond specifications and retailer prices

From $6,564 NZD
As of November 5, 2026
Save $6,779 NZD (51%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $14,967 NZD at NZ Jewellers · As of September 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 7541749455. Listed at 20 retailers as of November 4, 2026, with a 103% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7541749455
Dimensions10.21 × 5.51 × 3.61 mm
L/W Ratio1.85
Girdle conditionFaceted
Culet sizeNone
Top View
10.21 mm5.51 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7541749455
Side View
Table 60.0%CrownGirdle: THK-THKPavilionCulet: NoneDepth 65.5%

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 5
Current: $6,958 NZD|Low: $6,216 NZD|High: $13,845 NZD|Avg: $9,170 NZD|+5.7%
Retailer 1
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
November 6, 2026
Retailer 11$6,564 NZD
Retailer 14$6,696 NZD
Retailer 1$6,958 NZD
Retailer 13$7,149 NZD
Retailer 12$7,234 NZD
Retailer 6$7,782 NZD
Retailer 7$8,222 NZD
Retailer 2$8,478 NZD
Retailer 4$8,478 NZD
Retailer 5$8,659 NZD
Retailer 3$8,767 NZD
Retailer 10$9,467 NZD
Retailer 8$10,250 NZD
Retailer 9$13,343 NZD

44 data points across 14 retailers

20 retailers$6,564 NZD to $13,343 NZD

B+
Cheapest Retailer
-
$6,564 NZD
B
Retailer 2
-
$6,696 NZD
View
B
Retailer 3
-
$6,958 NZD
View
Final sale: no returns
B
Retailer 4
-
$7,149 NZD
View
B
Retailer 5
-
$7,234 NZD
View
Retailer 6
-
$7,782 NZD
View
Price last confirmed 37 days ago
Retailer 7
-
$7,782 NZD
View
Price last confirmed 37 days ago
Retailer 8
-
$7,782 NZD
View
Price last confirmed 9 days ago
B
Retailer 9
-
$8,029 NZD
View
B
Retailer 10
-
$8,222 NZD
View
B
Retailer 11
-
$8,478 NZD
View
B
Retailer 12
-
$8,478 NZD
View
Retailer 13
-
$8,659 NZD
View
Price last confirmed 29 days ago
B
Retailer 14
-
$8,767 NZD
View
Retailer 15
-
$8,980 NZD
View
Price last confirmed 39 days ago
B
Retailer 16
-
$9,467 NZD
View
Retailer 17
-
$9,487 NZD
View
Price last confirmed 15 days ago
B
Retailer 18
-
$10,250 NZD
View
B
Retailer 19
-
$13,343 NZD
View
Most Expensive
NZ Jewellers
2e8647e1-b92f-46c4-a630-b29b07b36f68 · Sep 30
$14,967 NZD
$8,297 USD
View
Price under review
19 more retailers have this diamond
Prices start from $6,564 NZDSave up to $6,779 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
$6,564 NZD