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Marquise|Natural|GIA

1.20ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 7553942310

Certificate GIA 7553942310

Diamond specifications and retailer prices

From $7,365 NZD
As of November 6, 2026
Save $8,231 NZD (53%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $16,901 NZD at NZ Jewellers · As of September 29, 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 H 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 7553942310. Listed at 22 retailers as of November 4, 2026, with a 112% 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7553942310
Dimensions12.52 × 5.27 × 3.09 mm
L/W Ratio2.38
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Needle, Indented Natural
Top View
12.52 mm5.27 mm1.20 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7553942310
Side View
Table 57.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 58.7%

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 6
Current: $9,485 NZD|Low: $7,365 NZD|High: $15,804 NZD|Avg: $10,715 NZD|-1.1%
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 10$7,365 NZD
Retailer 4$7,632 NZD
Retailer 3$8,428 NZD
Retailer 7$8,911 NZD
Retailer 1$9,485 NZD
Retailer 5$9,525 NZD
Retailer 2$9,819 NZD
Retailer 9$11,067 NZD
Retailer 6$11,980 NZD
Retailer 11$14,307 NZD
Retailer 8$15,597 NZD

25 data points across 11 retailers

22 retailers$7,365 NZD to $15,597 NZD

B+
Cheapest Retailer
-
$7,365 NZD
B+
Retailer 2
-
$7,632 NZD
View
B
Retailer 3
-
$8,428 NZD
View
B
Retailer 4
-
$8,911 NZD
View
B
Retailer 5
-
$9,061 NZD
View
Final sale: no returns
B
Retailer 6
-
$9,216 NZD
View
B
Retailer 7
-
$9,218 NZD
View
Retailer 8
-
$9,360 NZD
View
Price last confirmed 11 days ago
B
Retailer 9
-
$9,485 NZD
View
B
Retailer 10
-
$9,525 NZD
View
Retailer 11
-
$9,819 NZD
View
Price last confirmed 9 days ago
Retailer 12
-
$9,819 NZD
View
Price last confirmed 22 days ago
Retailer 13
-
$9,898 NZD
View
Price last confirmed 29 days ago
B
Retailer 14
-
$10,095 NZD
View
Retailer 15
-
$10,105 NZD
View
Price last confirmed 37 days ago
Retailer 16
-
$10,105 NZD
View
Price last confirmed 37 days ago
B
Retailer 17
-
$11,067 NZD
View
Retailer 18
-
$11,660 NZD
View
Price last confirmed 39 days ago
B
Retailer 19
-
$11,980 NZD
View
Retailer 20
-
$14,307 NZD
View
Price last confirmed 10 days ago
B
Retailer 21
-
$15,597 NZD
View
Most Expensive
NZ Jewellers
2cfd165e-4653-47d8-a433-57989b77a399 · Sep 29
$16,901 NZD
$9,369 USD
View
Price last confirmed 38 days ago
21 more retailers have this diamond
Prices start from $7,365 NZDSave up to $8,231 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
$7,365 NZD