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Marquise|Natural|GIA

1.20ct K SI1 Marquise Natural Diamond

EX • K/SI1 • GIA 7551514553

Certificate GIA 7551514553

Diamond specifications and retailer prices

From $5,139 NZD
As of November 5, 2026
Save $5,895 NZD (53%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $11,034 NZD 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551514553. Listed at 14 retailers as of November 5, 2026, with prices from $5,139 to $11,034, a $5,895 spread on the same certified stone. NZ Jewellers lists it at $11,034. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7551514553
Dimensions10.58 × 5.54 × 3.42 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizeNone
Top View
10.58 mm5.54 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7551514553
Side View
Table 60.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 61.7%

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: $6,144 NZD|Low: $5,139 NZD|High: $10,719 NZD|Avg: $6,744 NZD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$5,139 NZD
Retailer 6$5,141 NZD
Retailer 8$5,388 NZD
Retailer 9$5,958 NZD
Retailer 1$6,144 NZD
Retailer 3$6,514 NZD
Retailer 2$6,941 NZD
Retailer 4$7,730 NZD
Retailer 5$10,562 NZD

41 data points across 9 retailers

14 retailers$5,139 NZD to $11,034 NZD

B+
Cheapest Retailer
-
$5,139 NZD
B+
Retailer 2
-
$5,141 NZD
View
B+
Retailer 3
-
$5,388 NZD
View
B
Retailer 4
-
$5,738 NZD
View
Retailer 5
-
$5,738 NZD
View
Price last confirmed 8 days ago
B
Retailer 6
-
$5,958 NZD
View
B+
Retailer 7
-
$6,144 NZD
View
B
Retailer 8
-
$6,514 NZD
View
B
Retailer 9
-
$6,620 NZD
View
B
Retailer 10
-
$6,941 NZD
View
Retailer 11
-
$7,176 NZD
View
Price last confirmed 14 days ago
B
Retailer 12
-
$7,730 NZD
View
B
Retailer 13
-
$10,562 NZD
View
Most Expensive
C
NZ Jewellers
e008bd19-801b-4e79-8965-be14f37f4664 · Nov 5
$11,034 NZD
$6,117 USD
View
13 more retailers have this diamond
Prices start from $5,139 NZDSave up to $5,895 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
$5,139 NZD