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Marquise|Natural|GIA

1.00ct D I1 Marquise Natural Diamond

VG • D/I1 • GIA 5231335239

Certificate GIA 5231335239

Diamond specifications and retailer prices

From £1,806 GBP
$2,420 USD
As of October 31, 2026
Save £720 GBP (29%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £2,526 GBP at Yorxs · As of October 31, 2026
View at Yorxs

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded D colour (colourless) and I1 clarity (included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5231335239. Listed at 7 retailers as of October 31, 2026, with prices from £1,806 to £2,526, a £720 spread on the same certified stone. Yorxs lists it at £2,526. 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

1.00
Carat
D
Colour
I1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishGood
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5231335239
Dimensions9.54 × 5.27 × 3.00 mm
L/W Ratio1.81
Top View
9.54 mm5.27 mm1.00 ctD / I1
OriginNatural
CutVery Good
PolishGood
SymmetryGood
FluorescenceMedium
CertificateGIA 5231335239
Side View
Table 63.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 57.0%

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: £1,829 GBP|Low: £1,806 GBP|High: £2,526 GBP|Avg: £2,227 GBP|-0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Yorxs
October 31, 2026
Retailer 2£1,806 GBP
Retailer 1£1,829 GBP
Retailer 4£2,255 GBP
Retailer 5£2,373 GBP
Retailer 6£2,373 GBP
Retailer 3£2,448 GBP
Yorxs£2,526 GBP

18 data points across 7 retailers

7 retailers£1,806 GBP to £2,526 GBP

B+
Cheapest Retailer
-
£1,806 GBP
$2,420 USD
B+
Retailer 2
-
£1,829 GBP
$2,450 USD
View
B
Retailer 3
-
£2,255 GBP
$3,022 USD
View
B
Retailer 4
-
£2,373 GBP
$3,180 USD
View
B
Retailer 5
-
£2,373 GBP
$3,180 USD
View
B
Retailer 6
-
£2,448 GBP
$3,280 USD
View
Most Expensive
B
Yorxs
402600491 · Oct 31
£2,526 GBP
€3,224 EUR
View
6 more retailers have this diamond
Prices start from £1,806 GBPSave up to £720 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+
1.00ct Marquise
£1,806 GBP