Marquise|Natural|GIA

1.21ct D SI1 Marquise Natural Diamond

EX • D/SI1

Diamond specifications and retailer prices

From $5,040 USD
As of November 1, 2026
Save $6,122 USD (55%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $11,162 USD at NZ Jewellers · As of November 5, 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. Listed at 10 retailers as of November 1, 2026, with prices from $5,040 to $11,162, a $6,122 spread on the same certified stone. NZ Jewellers lists it at $11,162. 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
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions10.20 × 5.74 × 3.29 mm
L/W Ratio1.78
Top View
10.20 mm5.74 mm1.21 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA
Side View
Table 68.0%CrownGirdle: ThickPavilionCuletDepth 57.3%

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 1
Current: $11,162 USD|Low: $5,040 USD|High: $12,569 USD|Avg: $6,990 USD|-11.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8$5,040 USD
Retailer 7$5,724 USD
Retailer 3$6,046 USD
Retailer 4$6,046 USD
Retailer 5$6,046 USD
Retailer 10$6,085 USD
Retailer 2$6,475 USD
Retailer 9$6,761 USD
Retailer 6$6,977 USD
NZ Jewellers$11,162 USD

31 data points across 10 retailers

10 retailers$5,040 USD to $11,162 USD

B+
Cheapest Retailer
-
$5,040 USD
B
Retailer 2
-
$5,724 USD
View
Retailer 3
-
$6,046 USD
View
Price last confirmed 8 days ago
B
Retailer 4
-
$6,046 USD
View
B
Retailer 5
-
$6,046 USD
View
B
Retailer 6
-
$6,085 USD
View
B
Retailer 7
-
$6,475 USD
View
B
Retailer 8
-
$6,761 USD
View
B
Retailer 9
-
$6,977 USD
View
Most Expensive
C
NZ Jewellers
e9cb07d0-8cb8-4821-aee2-af32967f0286 · Nov 5
$11,162 USD
View
9 more retailers have this diamond
Prices start from $5,040 USDSave up to $6,122 USD

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
$5,040 USD