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Marquise|Natural|GIA

1.20ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 2556683633

Certificate GIA 2556683633

Diamond specifications and retailer prices

From $10,547 NZD
As of November 5, 2026
Save $361 NZD (3%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $20,350 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556683633. Listed at 14 retailers as of November 4, 2026, with a relatively tight 3% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556683633
Dimensions10.86 × 5.72 × 3.41 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Needle, Indented Natural, Natural
Top View
10.86 mm5.72 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556683633
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.7%

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: $10,547 NZD|Low: $8,890 NZD|High: $18,142 NZD|Avg: $11,975 NZD|+0.2%
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
Retailer 15
Retailer 16
Retailer 17
November 5, 2026
Retailer 16$8,890 NZD
Retailer 13$9,561 NZD
Retailer 15$9,858 NZD
Retailer 6$10,221 NZD
Retailer 4$10,383 NZD
Retailer 1$10,547 NZD
Retailer 5$10,908 NZD
Retailer 11$11,027 NZD
Retailer 9$11,112 NZD
Retailer 7$11,231 NZD
Retailer 10$11,554 NZD
Retailer 2$11,716 NZD
Retailer 17$12,234 NZD
Retailer 12$13,003 NZD
Retailer 8$14,637 NZD
Retailer 14$15,842 NZD
Retailer 3$17,814 NZD

22 data points across 17 retailers

14 retailers$10,547 NZD to $10,908 NZD

Retailer 1
-
$8,890 NZD
Price last confirmed 26 days ago
Retailer 2
-
$9,858 NZD
View
Price last confirmed 29 days ago
Retailer 3
-
$10,221 NZD
View
Price last confirmed 28 days ago
B+
Retailer 4
-
$10,547 NZD
View
B
Retailer 5
-
$10,908 NZD
View
Retailer 6
-
$11,029 NZD
View
Price last confirmed 29 days ago
Retailer 7
-
$11,716 NZD
View
Price last confirmed 33 days ago
Retailer 8
-
$12,167 NZD
View
Price last confirmed 39 days ago
Retailer 9
-
$12,234 NZD
View
Price last confirmed 28 days ago
Retailer 10
-
$14,040 NZD
View
Price last confirmed 38 days ago
Retailer 11
-
$14,637 NZD
View
Price last confirmed 42 days ago
Retailer 12
-
$15,842 NZD
View
Price last confirmed 26 days ago
Retailer 13
-
$17,814 NZD
View
Price last confirmed 32 days ago
Most Expensive
NZ Jewellers
bf39d3d5-c702-4716-9393-974cdb4c8b3d · Sep 30
$20,350 NZD
$11,281 USD
View
Price last confirmed 37 days ago
13 more retailers have this diamond
Prices start from $10,547 NZDSave up to $361 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
$10,547 NZD