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Marquise|Natural|GIA

1.00ct H I1 Marquise Natural Diamond

EX • H/I1 • GIA 3445699688

Certificate GIA 3445699688

Diamond specifications and retailer prices

From £1,223 GBP
₹156,351 INR
As of November 2, 2026
Save £2,295 GBP (65%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £3,518 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded H colour (near-colourless) and I1 clarity (included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3445699688. Listed at 9 retailers as of October 30, 2026, with prices from £1,223 to £3,518, a £2,295 spread on the same certified stone. NZ Jewellers lists it at £3,518. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
H
Colour
I1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3445699688
Dimensions8.89 × 5.24 × 3.44 mm
L/W Ratio1.70
Top View
8.89 mm5.24 mm1.00 ctH / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3445699688
Side View
Table 56.0%CrownGirdlePavilionCulet: NoneDepth 65.6%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: £3,518 GBP|Low: £1,221 GBP|High: £3,518 GBP|Avg: £1,841 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 2£1,223 GBP
Retailer 4£1,230 GBP
Retailer 10£1,520 GBP
Retailer 5£1,589 GBP
Retailer 6£1,683 GBP
Retailer 8£1,683 GBP
Retailer 9£1,760 GBP
Retailer 7£1,942 GBP
Retailer 3£2,101 GBP
NZ Jewellers£3,518 GBP

44 data points across 10 retailers

9 retailers£1,223 GBP to £3,518 GBP

A
Cheapest Retailer
-
£1,223 GBP
₹156,351 INR
A
Retailer 2
-
£1,230 GBP
HK$12,900 HKD
View
B+
Retailer 3
-
£1,589 GBP
$2,132 USD
View
B+
Retailer 4
-
£1,683 GBP
$2,258 USD
View
B+
Retailer 5
-
£1,683 GBP
$2,258 USD
View
B+
Retailer 6
-
£1,760 GBP
$2,362 USD
View
B
Retailer 7
-
£1,942 GBP
$2,606 USD
View
B
Retailer 8
-
£2,101 GBP
€2,685 EUR
View
Most Expensive
C
NZ Jewellers
ff88b1fa-947b-4829-9d81-c893197fd953 · Oct 30
£3,518 GBP
$4,721 USD
View
8 more retailers have this diamond
Prices start from £1,223 GBPSave up to £2,295 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.

A
1.00ct Marquise
£1,223 GBP