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Marquise|Natural|GIA

1.21ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 6552770005

Certificate GIA 6552770005

Diamond specifications and retailer prices

From $8,433 NZD
As of November 1, 2026
Save $7,679 NZD (48%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $16,112 NZD at MOH London · As of November 4, 2026
View at MOH London

About this 1.21ct natural marquise diamond

This 1.21ct 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 6552770005. Listed at 12 retailers as of November 1, 2026, with prices from $8,433 to $16,112, a $7,679 spread on the same certified stone. MOH London lists it at $16,112. 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

1.21
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6552770005
Dimensions10.75 × 5.65 × 3.41 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Top View
10.75 mm5.65 mm1.21 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6552770005
Side View
Table 55.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 60.4%

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 1
Current: $16,112 NZD|Low: $8,433 NZD|High: $16,351 NZD|Avg: $10,744 NZD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 6$8,433 NZD
Retailer 7$8,664 NZD
Retailer 3$8,736 NZD
Retailer 9$9,247 NZD
Retailer 8$9,299 NZD
Retailer 2$10,416 NZD
Retailer 11$10,515 NZD
Retailer 4$10,638 NZD
Retailer 10$10,896 NZD
Retailer 5$13,378 NZD
MOH London$16,112 NZD

46 data points across 11 retailers

12 retailers$8,433 NZD to $16,112 NZD

B+
Cheapest Retailer
-
$8,433 NZD
B+
Retailer 2
-
$8,664 NZD
View
B+
Retailer 3
-
$8,736 NZD
View
B
Retailer 4
-
$9,247 NZD
View
B
Retailer 5
-
$9,299 NZD
View
B
Retailer 6
-
$10,416 NZD
View
B
Retailer 7
-
$10,515 NZD
View
B
Retailer 8
-
$10,638 NZD
View
B
Retailer 9
-
$10,883 NZD
View
Retailer 10
-
$10,896 NZD
View
Price last confirmed 34 days ago
B
Retailer 11
-
$13,378 NZD
View
Most Expensive
B
MOH London
925C02E91 · Nov 4
$16,112 NZD
£7,033 GBP
View
11 more retailers have this diamond
Prices start from $8,433 NZDSave up to $7,679 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+
1.21ct Marquise
$8,433 NZD