CaratHunter
Plans
Marquise|Natural|GIA

1.30ct K SI1 Marquise Natural Diamond

EX • K/SI1 • GIA 7551663028

Certificate GIA 7551663028

Diamond specifications and retailer prices

From £2,677 GBP
As of November 6, 2026
Save £2,800 GBP (51%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £5,477 GBP 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 £2,677 to £5,477, a £2,800 spread on the same certified stone. NZ Jewellers lists it at £5,477. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £5,477 GBP|Low: £2,189 GBP|High: £5,477 GBP|Avg: £3,478 GBP
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£2,189 GBP
Retailer 12£2,677 GBP
Retailer 10£2,817 GBP
Retailer 3£2,981 GBP
Retailer 11£3,063 GBP
Retailer 8£3,129 GBP
Retailer 9£3,129 GBP
Retailer 5£3,215 GBP
Retailer 2£3,369 GBP
Retailer 7£4,589 GBP
Retailer 6£5,243 GBP
NZ Jewellers£5,477 GBP

28 data points across 12 retailers

11 retailers£2,677 GBP to £5,477 GBP

B+
Cheapest Retailer
-
£2,677 GBP
B+
Retailer 2
-
£2,817 GBP
View
B+
Retailer 3
-
£2,981 GBP
View
B+
Retailer 4
-
£3,063 GBP
View
B+
Retailer 5
-
£3,129 GBP
View
B+
Retailer 6
-
£3,129 GBP
View
B+
Retailer 7
-
£3,215 GBP
View
B+
Retailer 8
-
£3,369 GBP
View
B
Retailer 9
-
£4,589 GBP
View
B
Retailer 10
-
£5,243 GBP
View
Most Expensive
B
NZ Jewellers
d59c58bd-2a71-439a-88d1-f0f399ee09e3 · Nov 5
£5,477 GBP
$7,372 USD
View
10 more retailers have this diamond
Prices start from £2,677 GBPSave up to £2,800 GBP

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
£2,677 GBP