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Marquise|Natural|GIA

0.80ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 6551631658

Certificate GIA 6551631658

Diamond specifications and retailer prices

From £984 GBP
HK$10,300 HKD
As of November 1, 2026
Save £2,216 GBP (69%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,200 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.8ct natural marquise diamond

This 0.8ct natural marquise sits in the just-under-one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551631658. Listed at 11 retailers as of October 30, 2026, with prices from £984 to £3,200, a £2,216 spread on the same certified stone. NZ Jewellers lists it at £3,200. 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

0.80
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551631658
Dimensions10.46 × 4.57 × 2.83 mm
L/W Ratio2.29
Girdle conditionVery Thick to Extremely Thick
Key to symbols
Twinning Wisp
Top View
10.46 mm4.57 mm0.80 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551631658
Side View
Table 62.0%CrownGirdle: VTK-XTKPavilionCulet: NoneDepth 61.9%

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 1
Current: £3,200 GBP|Low: £974 GBP|High: £3,449 GBP|Avg: £1,577 GBP|-7.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 7£984 GBP
Retailer 2£988 GBP
Retailer 3£1,044 GBP
Retailer 10£1,226 GBP
Retailer 8£1,312 GBP
Retailer 11£1,366 GBP
Retailer 9£1,373 GBP
Retailer 4£1,654 GBP
Retailer 5£1,676 GBP
Retailer 6£2,299 GBP
NZ Jewellers£3,200 GBP

30 data points across 11 retailers

11 retailers£984 GBP to £3,200 GBP

A
Cheapest Retailer
-
£984 GBP
HK$10,300 HKD
A
Retailer 2
-
£988 GBP
₹126,068 INR
View
A
Retailer 3
-
£1,044 GBP
$1,399 USD
View
Final sale: no returns
B+
Retailer 4
-
£1,226 GBP
$1,643 USD
View
B+
Retailer 5
-
£1,312 GBP
$1,758 USD
View
B+
Retailer 6
-
£1,366 GBP
SGD 2,473 SGD
View
B+
Retailer 7
-
£1,373 GBP
$1,839 USD
View
B+
Retailer 8
-
£1,654 GBP
View
B+
Retailer 9
-
£1,676 GBP
View
B
Retailer 10
-
£2,299 GBP
View
Most Expensive
B
NZ Jewellers
aa8fbb88-aa5f-4323-a04f-31868a33bf3a · Oct 30
£3,200 GBP
$4,288 USD
View
10 more retailers have this diamond
Prices start from £984 GBPSave up to £2,216 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
0.80ct Marquise
£984 GBP