Marquise|Natural|GIA

1.02ct D SI1 Marquise Natural Diamond

GD • D/SI1 • GIA 1553508943

Certificate GIA 1553508943

Diamond specifications and retailer prices

From £3,189 GBP
$4,280 USD
As of October 31, 2026
Save £2,316 GBP (42%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £6,021 GBP at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1553508943. Listed at 15 retailers as of October 31, 2026, with a 73% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

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

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1553508943
Dimensions9.65 × 5.30 × 3.37 mm
L/W Ratio1.82
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal
Top View
9.65 mm5.30 mm1.02 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1553508943
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.5%

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: Oct 31
Current: £3,371 GBP|Low: £3,189 GBP|High: £5,571 GBP|Avg: £3,799 GBP|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 8£3,189 GBP
Retailer 7£3,297 GBP
Retailer 1£3,371 GBP
Retailer 3£3,437 GBP
Retailer 6£3,456 GBP
Retailer 9£3,484 GBP
Retailer 5£3,911 GBP
Retailer 4£4,248 GBP
Retailer 2£5,505 GBP

37 data points across 9 retailers

15 retailers£3,189 GBP to £5,505 GBP

B+
Cheapest Retailer
-
£3,189 GBP
$4,280 USD
Final sale: no returns
B+
Retailer 2
-
£3,297 GBP
$4,425 USD
View
B
Retailer 3
-
£3,371 GBP
View
B
Retailer 4
-
£3,437 GBP
View
Retailer 5
-
£3,456 GBP
$4,638 USD
View
Price last confirmed 25 days ago
Retailer 6
-
£3,456 GBP
$4,638 USD
View
Price last confirmed 32 days ago
Retailer 7
-
£3,456 GBP
$4,638 USD
View
Price last confirmed 8 days ago
Retailer 8
-
£3,456 GBP
$4,638 USD
View
Price last confirmed 25 days ago
Retailer 9
-
£3,484 GBP
A$7,193 AUD
View
Price last confirmed 23 days ago
B
Retailer 10
-
£3,911 GBP
€4,999 EUR
View
Retailer 11
-
£3,988 GBP
$5,352 USD
View
Price last confirmed 52 days ago
Retailer 12
-
£3,988 GBP
$5,352 USD
View
Price last confirmed 34 days ago
B
Retailer 13
-
£4,248 GBP
ZAR 92,100 ZAR
View
B
Retailer 14
-
£5,505 GBP
View
Most Expensive
NZ Jewellers
707a2bf6-80ee-45d6-bc41-31727b680ce8 · Sep 29
£6,021 GBP
$8,080 USD
View
Price last confirmed 33 days ago
14 more retailers have this diamond
Prices start from £3,189 GBPSave up to £2,316 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+
1.02ct Marquise
£3,189 GBP