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Marquise|Natural|GIA

1.21ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 2557418396

Certificate GIA 2557418396

Diamond specifications and retailer prices

From $9,353 NZD
As of November 6, 2026
2 retailers carry this diamond
Most expensive: $12,618 NZD at 77 Diamonds · As of October 24, 2026
View at 77 Diamonds

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded G 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 2557418396. Listed at 2 retailers as of November 6, 2026. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.34°
Pavilion angle37.33°
OriginNatural
Grading LabGIA
CertificateGIA 2557418396
Dimensions10.76 × 5.68 × 3.28 mm
L/W Ratio1.89
Culet sizeNone
Top View
10.76 mm5.68 mm1.21 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557418396
Side View
Table 60.0%Crown 38.34°Girdle: THN-VTKPavilion 37.33°Culet: NoneDepth 57.7%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: $12,618 NZD|Low: $5,718 NZD|High: $14,649 NZD|Avg: $9,911 NZD|-1.3%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 24, 2026
Retailer 13$5,718 NZD
Retailer 6$7,805 NZD
Retailer 2$8,069 NZD
Retailer 10$8,213 NZD
Retailer 12$8,466 NZD
Retailer 3$9,353 NZD
Retailer 8$9,416 NZD
Retailer 9$9,757 NZD
Retailer 5$10,728 NZD
Retailer 11$11,128 NZD
77 Diamonds$12,618 NZD
Retailer 7$12,815 NZD
Retailer 4$14,649 NZD

11 data points across 13 retailers

2 retailers

B+
Cheapest Retailer
-
$9,353 NZD
Most Expensive
77 Diamonds
MQMBCBCANRVZ · Oct 24
$12,618 NZD
£5,508 GBP
View
Price last confirmed 14 days ago
1 more retailer has this diamond
Prices start from $9,353 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
$9,353 NZD