Marquise|Natural|GIA

1.30ct K SI1 Marquise Natural Diamond

EX • K/SI1 • GIA 7551663028

Certificate GIA 7551663028

Diamond specifications and retailer prices

From $3,603 USD
As of November 6, 2026
Save $3,769 USD (51%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,372 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.3ct natural marquise diamond

This 1.3ct natural marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551663028. Listed at 11 retailers as of November 5, 2026, with prices from $3,603 to $7,372, a $3,769 spread on the same certified stone. NZ Jewellers lists it at $7,372. 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

1.30
Carat
K
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7551663028
Dimensions11.05 × 5.68 × 3.57 mm
L/W Ratio1.95
Culet sizeNone
Top View
11.05 mm5.68 mm1.30 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7551663028
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.9%

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 6
Current: $7,372 USD|Low: $2,946 USD|High: $7,372 USD|Avg: $4,681 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 4$2,946 USD
Retailer 12$3,603 USD
Retailer 10$3,791 USD
Retailer 3$4,012 USD
Retailer 11$4,123 USD
Retailer 8$4,212 USD
Retailer 9$4,212 USD
Retailer 5$4,327 USD
Retailer 2$4,534 USD
Retailer 7$6,177 USD
Retailer 6$7,057 USD
NZ Jewellers$7,372 USD

28 data points across 12 retailers

11 retailers$3,603 USD to $7,372 USD

B+
Cheapest Retailer
-
$3,603 USD
B+
Retailer 2
-
$3,791 USD
View
B+
Retailer 3
-
$4,012 USD
View
B+
Retailer 4
-
$4,123 USD
View
B+
Retailer 5
-
$4,212 USD
View
B+
Retailer 6
-
$4,212 USD
View
B+
Retailer 7
-
$4,327 USD
View
B+
Retailer 8
-
$4,534 USD
View
B
Retailer 9
-
$6,177 USD
View
B
Retailer 10
-
$7,057 USD
View
Most Expensive
B
NZ Jewellers
d59c58bd-2a71-439a-88d1-f0f399ee09e3 · Nov 5
$7,372 USD
View
10 more retailers have this diamond
Prices start from $3,603 USDSave up to $3,769 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+
1.30ct Marquise
$3,603 USD