Marquise|Natural|GIA

1.21ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 1567588621

Certificate GIA 1567588621

Diamond specifications and retailer prices

From $5,254 USD
As of November 4, 2026
Save $4,297 USD (45%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $9,551 USD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

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 1567588621. Listed at 15 retailers as of November 4, 2026, with prices from $5,254 to $9,551, a $4,297 spread on the same certified stone. Wholesale Diamonds Direct lists it at $9,551. 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
SymmetryExcellent
FluorescenceNone
Crown angle39.76°
Pavilion angle40.69°
OriginNatural
Grading LabGIA
CertificateGIA 1567588621
Dimensions10.43 × 5.51 × 3.55 mm
L/W Ratio1.89
Culet sizeNone
Top View
10.43 mm5.51 mm1.21 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1567588621
Side View
Table 60.0%Crown 39.76°Girdle: MED-THKPavilion 40.69°Culet: NoneDepth 64.4%

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 4
Current: $7,447 USD|Low: $5,254 USD|High: $9,551 USD|Avg: $6,647 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Wholesale Diamonds Direct
November 6, 2026
Retailer 5$5,254 USD
Retailer 10$5,347 USD
Retailer 12$5,398 USD
Retailer 9$5,498 USD
Retailer 14$5,558 USD
Retailer 13$5,635 USD
Retailer 6$5,685 USD
Retailer 8$5,937 USD
Retailer 4$6,643 USD
Retailer 7$6,662 USD
Retailer 2$6,672 USD
Retailer 1$7,447 USD
Retailer 3$8,624 USD
Retailer 11$9,053 USD
Wholesale Diamonds Direct$9,551 USD

23 data points across 15 retailers

15 retailers$5,254 USD to $9,551 USD

B+
Cheapest Retailer
-
$5,254 USD
B+
Retailer 2
-
$5,347 USD
View
B+
Retailer 3
-
$5,398 USD
View
B+
Retailer 4
-
$5,498 USD
View
B+
Retailer 5
-
$5,558 USD
View
B+
Retailer 6
-
$5,635 USD
View
B+
Retailer 7
-
$5,685 USD
View
B+
Retailer 8
-
$5,937 USD
View
B
Retailer 9
-
$6,643 USD
View
B
Retailer 10
-
$6,662 USD
View
B
Retailer 11
-
$6,672 USD
View
B
Retailer 12
-
$7,447 USD
View
B
Retailer 13
-
$8,624 USD
View
B
Retailer 14
-
$9,053 USD
View
Most Expensive
B
Wholesale Diamonds Direct
545946513 · Nov 6
$9,551 USD
View
14 more retailers have this diamond
Prices start from $5,254 USDSave up to $4,297 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
$5,254 USD