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Marquise|Natural|GIA

1.20ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 1565306355

Certificate GIA 1565306355

Diamond specifications and retailer prices

From $6,361 NZD
As of November 6, 2026
Save $8,507 NZD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $14,868 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 I 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 1565306355. Listed at 20 retailers as of November 5, 2026, with prices from $6,361 to $14,868, a $8,507 spread on the same certified stone. NZ Jewellers lists it at $14,868. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1565306355
Dimensions11.23 × 5.42 × 3.04 mm
L/W Ratio2.07
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
11.23 mm5.42 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1565306355
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 56.0%

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 6
Current: $13,518 NZD|Low: $6,361 NZD|High: $13,735 NZD|Avg: $8,945 NZD|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 5$6,361 NZD
Retailer 2$8,054 NZD
Retailer 6$8,278 NZD
Retailer 4$8,403 NZD
Retailer 9$8,558 NZD
Retailer 3$8,603 NZD
Retailer 11$8,623 NZD
Retailer 10$8,987 NZD
Retailer 7$9,061 NZD
Retailer 8$10,412 NZD
Retailer 1$13,518 NZD

30 data points across 11 retailers

20 retailers$6,361 NZD to $14,868 NZD

B+
Cheapest Retailer
-
$6,361 NZD
B+
Retailer 2
-
$6,792 NZD
View
Final sale: no returns
B
Retailer 3
-
$7,443 NZD
View
B+
Retailer 4
-
$7,800 NZD
View
B
Retailer 5
-
$8,054 NZD
View
B+
Retailer 6
-
$8,278 NZD
View
B+
Retailer 7
-
$8,403 NZD
View
Retailer 8
-
$8,534 NZD
View
Price last confirmed 9 days ago
B
Retailer 9
-
$8,534 NZD
View
B
Retailer 10
-
$8,534 NZD
View
B
Retailer 11
-
$8,558 NZD
View
Retailer 12
-
$8,603 NZD
View
Price last confirmed 29 days ago
B
Retailer 13
-
$8,623 NZD
View
B
Retailer 14
-
$8,881 NZD
View
B
Retailer 15
-
$8,987 NZD
View
B
Retailer 16
-
$9,061 NZD
View
B
Retailer 17
-
$9,847 NZD
View
B
Retailer 18
-
$10,412 NZD
View
B
Retailer 19
-
$13,518 NZD
View
Most Expensive
B
NZ Jewellers
a8ee4bc2-c613-4e2c-a18c-d585237df2a4 · Nov 5
$14,868 NZD
$8,242 USD
View
19 more retailers have this diamond
Prices start from $6,361 NZDSave up to $8,507 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
$6,361 NZD