Marquise|Natural|GIA

1.21ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 2245012124

Certificate GIA 2245012124

Diamond specifications and retailer prices

From $5,070 USD
As of November 5, 2026
Save $5,894 USD (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $10,964 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 E 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 2245012124. Listed at 19 retailers as of November 5, 2026, with prices from $5,070 to $10,964, a $5,894 spread on the same certified stone. NZ Jewellers lists it at $10,964. 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
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.85°
Pavilion angle40.41°
OriginNatural
Grading LabGIA
CertificateGIA 2245012124
Dimensions10.52 × 5.54 × 3.55 mm
L/W Ratio1.90
Culet sizeNone
Top View
10.52 mm5.54 mm1.21 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2245012124
Side View
Table 60.0%Crown 38.85°Girdle: STK-THKPavilion 40.41°Culet: NoneDepth 64.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $10,964 USD|Low: $3,235 USD|High: $10,964 USD|Avg: $6,311 USD
NZ Jewellers
Retailer 2
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Retailer 27
November 6, 2026
Retailer 17$3,235 USD
Retailer 12$4,756 USD
Retailer 16$4,787 USD
Retailer 25$5,070 USD
Retailer 7$5,179 USD
Retailer 27$5,293 USD
Retailer 20$5,423 USD
Retailer 26$5,482 USD
Retailer 8$5,540 USD
Retailer 14$5,562 USD
Retailer 18$5,614 USD
Retailer 23$5,939 USD
Retailer 5$6,196 USD
Retailer 13$6,226 USD
Retailer 2$6,359 USD
Retailer 15$6,476 USD
Retailer 10$6,620 USD
Retailer 11$6,620 USD
Retailer 4$6,712 USD
Retailer 9$6,840 USD
Retailer 21$6,852 USD
Retailer 24$7,111 USD
Retailer 6$7,227 USD
Retailer 19$7,398 USD
Retailer 22$7,998 USD
Retailer 3$9,709 USD
NZ Jewellers$10,964 USD

5 data points across 27 retailers

19 retailers$5,070 USD to $10,964 USD

B+
Cheapest Retailer
-
$5,070 USD
Retailer 2
-
$5,179 USD
View
Price last confirmed 14 days ago
B+
Retailer 3
-
$5,423 USD
View
B+
Retailer 4
-
$5,482 USD
View
Final sale: no returns
B+
Retailer 5
-
$5,540 USD
View
B+
Retailer 6
-
$5,939 USD
View
B
Retailer 7
-
$6,196 USD
View
B+
Retailer 8
-
$6,226 USD
View
B+
Retailer 9
-
$6,359 USD
View
B
Retailer 10
-
$6,620 USD
View
B
Retailer 11
-
$6,620 USD
View
B
Retailer 12
-
$6,712 USD
View
B
Retailer 13
-
$6,840 USD
View
B
Retailer 14
-
$6,852 USD
View
Retailer 15
-
$6,852 USD
View
Price last confirmed 16 days ago
Retailer 16
-
$7,227 USD
View
Price last confirmed 14 days ago
B
Retailer 17
-
$7,998 USD
View
Retailer 18
-
$9,709 USD
View
Price last confirmed 16 days ago
Most Expensive
B
NZ Jewellers
37fadd84-ff04-4ea0-ab27-69096abcf447 · Nov 5
$10,964 USD
View
18 more retailers have this diamond
Prices start from $5,070 USDSave up to $5,894 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
$5,070 USD