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Marquise|Natural|GIA

1.00ct K SI2 Marquise Natural Diamond

EX • K/SI2 • GIA 1563318461

Certificate GIA 1563318461

Diamond specifications and retailer prices

From $1,229 USD
As of October 31, 2026
Save $542 USD (31%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,024 USD at Wholesale Diamonds Direct · As of October 27, 2026
View at Wholesale Diamonds Direct

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1563318461. Listed at 13 retailers as of October 31, 2026, with a 44% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.00
Carat
K
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle39.79°
Pavilion angle38.47°
OriginNatural
Grading LabGIA
CertificateGIA 1563318461
Dimensions9.82 × 5.15 × 3.22 mm
L/W Ratio1.91
Culet sizeNone
Top View
9.82 mm5.15 mm1.00 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1563318461
Side View
Table 59.0%Crown 39.79°Girdle: STK-THKPavilion 38.47°Culet: NDepth 62.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $1,235 USD|Low: $1,207 USD|High: $2,033 USD|Avg: $1,468 USD|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Wholesale Diamonds Direct
November 5, 2026
Retailer 9$1,229 USD
Retailer 1$1,235 USD
Retailer 11$1,251 USD
Retailer 10$1,265 USD
Retailer 7$1,314 USD
Retailer 4$1,338 USD
Retailer 5$1,384 USD
Retailer 12$1,390 USD
Retailer 2$1,502 USD
Retailer 6$1,543 USD
Retailer 3$1,731 USD
Retailer 8$1,771 USD
Wholesale Diamonds Direct$2,024 USD

41 data points across 13 retailers

13 retailers$1,229 USD to $1,771 USD

A
Cheapest Retailer
-
$1,229 USD
A
Retailer 2
-
$1,235 USD
View
A
Retailer 3
-
$1,251 USD
View
A
Retailer 4
-
$1,265 USD
View
B+
Retailer 5
-
$1,314 USD
View
B+
Retailer 6
-
$1,338 USD
View
B+
Retailer 7
-
$1,384 USD
View
B+
Retailer 8
-
$1,390 USD
View
B+
Retailer 9
-
$1,502 USD
View
A
Retailer 10
-
$1,543 USD
View
B+
Retailer 11
-
$1,731 USD
View
B+
Retailer 12
-
$1,771 USD
View
Most Expensive
Wholesale Diamonds Direct
418966411 · Oct 27
$2,024 USD
View
Price last confirmed 10 days ago
12 more retailers have this diamond
Prices start from $1,229 USDSave up to $542 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.

A
1.00ct Marquise
$1,229 USD