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Marquise|Natural|GIA

1.21ct D SI1 Marquise Natural Diamond

ID • D/SI1 • GIA 7558598063

Certificate GIA 7558598063

Diamond specifications and retailer prices

From $8,038 NZD
As of November 5, 2026
Save $7,571 NZD (49%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $15,609 NZD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.21ct natural marquise diamond

This 1.21ct 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 7558598063. Listed at 10 retailers as of November 3, 2026, with prices from $8,038 to $15,609, a $7,571 spread on the same certified stone. NZ Jewellers lists it at $15,609. 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
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle40.62°
Pavilion angle40.11°
OriginNatural
Grading LabGIA
CertificateGIA 7558598063
Dimensions9.78 × 5.47 × 3.69 mm
L/W Ratio1.79
Girdle conditionVery Thick
Key to symbols
Crystal, Knot, Indented Natural
Top View
9.78 mm5.47 mm1.21 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 7558598063
Side View
Table 59.0%Crown 40.62°GirdlePavilion 40.11°CuletDepth 67.3%

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: $15,609 NZD|Low: $8,038 NZD|High: $15,793 NZD|Avg: $10,396 NZD|-0.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 3$8,038 NZD
Retailer 4$8,623 NZD
Retailer 5$8,738 NZD
Retailer 7$8,803 NZD
Retailer 8$8,960 NZD
Retailer 9$8,960 NZD
Retailer 10$9,458 NZD
Retailer 2$10,116 NZD
Retailer 6$14,269 NZD
NZ Jewellers$15,609 NZD

30 data points across 10 retailers

10 retailers$8,038 NZD to $15,609 NZD

B+
Cheapest Retailer
-
$8,038 NZD
B+
Retailer 2
-
$8,623 NZD
View
B+
Retailer 3
-
$8,738 NZD
View
B+
Retailer 4
-
$8,803 NZD
View
B+
Retailer 5
-
$8,960 NZD
View
B+
Retailer 6
-
$8,960 NZD
View
Retailer 7
-
$9,458 NZD
View
Price last confirmed 29 days ago
B+
Retailer 8
-
$10,116 NZD
View
B
Retailer 9
-
$14,269 NZD
View
Most Expensive
B
NZ Jewellers
e133051b-13b6-4904-b503-a4873a6cd697 · Nov 3
$15,609 NZD
$8,653 USD
View
9 more retailers have this diamond
Prices start from $8,038 NZDSave up to $7,571 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
$8,038 NZD