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Marquise|Natural|GIA

1.02ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 6551493839

Certificate GIA 6551493839

Diamond specifications and retailer prices

From £2,673 GBP
$3,582 USD
As of October 30, 2026
Save £1,023 GBP (28%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,696 GBP at Yorxs · As of October 31, 2026
View at Yorxs

About this 1.02ct natural marquise diamond

This 1.02ct natural marquise sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551493839. Listed at 10 retailers as of October 30, 2026, with prices from £2,673 to £3,696, a £1,023 spread on the same certified stone. Yorxs lists it at £3,696. 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

1.02
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.69°
Pavilion angle39.13°
OriginNatural
Grading LabGIA
CertificateGIA 6551493839
Dimensions9.85 × 5.19 × 3.25 mm
L/W Ratio1.90
Culet sizeNone
Top View
9.85 mm5.19 mm1.02 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551493839
Side View
Table 59.0%Crown 39.69°Girdle: STK-THKPavilion 39.13°Culet: NoneDepth 62.5%

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: Oct 30
Current: £3,187 GBP|Low: £1,629 GBP|High: £4,264 GBP|Avg: £3,058 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Yorxs
October 31, 2026
Retailer 3£1,629 GBP
Retailer 2£2,277 GBP
Retailer 6£2,430 GBP
Retailer 4£2,660 GBP
Retailer 11£2,673 GBP
Retailer 7£2,719 GBP
Retailer 10£2,755 GBP
Retailer 15£2,766 GBP
Retailer 5£2,884 GBP
Retailer 1£3,187 GBP
Retailer 14£3,327 GBP
Retailer 9£3,520 GBP
Retailer 12£3,530 GBP
Retailer 13£3,530 GBP
Retailer 16£3,650 GBP
Retailer 17£3,650 GBP
Yorxs£3,696 GBP
Retailer 8£4,264 GBP

14 data points across 18 retailers

10 retailers£2,673 GBP to £3,696 GBP

A
Cheapest Retailer
-
£2,673 GBP
$3,582 USD
A
Retailer 2
-
£2,719 GBP
$3,643 USD
View
B+
Retailer 3
-
£2,766 GBP
$3,706 USD
View
B+
Retailer 4
-
£2,811 GBP
A$5,795 AUD
View
Retailer 5
-
£3,187 GBP
$4,270 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
£3,327 GBP
$4,458 USD
View
B+
Retailer 7
-
£3,530 GBP
$4,730 USD
View
B+
Retailer 8
-
£3,530 GBP
$4,730 USD
View
B+
Retailer 9
-
£3,650 GBP
$4,890 USD
View
Most Expensive
B+
Yorxs
597991641 · Oct 31
£3,696 GBP
€4,717 EUR
View
9 more retailers have this diamond
Prices start from £2,673 GBPSave up to £1,023 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
1.02ct Marquise
£2,673 GBP