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Marquise|Natural|GIA

0.65ct H SI1 Marquise Natural Diamond

H/SI1 • GIA 1152523028

Certificate GIA 1152523028

Diamond specifications and retailer prices

From £1,164 GBP
$1,562 USD
As of November 2, 2026
Save £48 GBP (4%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,212 GBP at DreamStone · As of October 31, 2026
View at DreamStone

About this 0.65ct natural marquise diamond

This 0.65ct natural marquise sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included) and certified by GIA 1152523028. Listed at 2 retailers as of October 31, 2026, with a relatively tight 4% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

0.65
Carat
H
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1152523028
Dimensions5.50 × 5.59 × 3.57 mm
L/W Ratio1.02
Top View
5.50 mm5.59 mm0.65 ctH / SI1
OriginNatural
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 1152523028
Side View
Table 58.0%CrownGirdlePavilionCuletDepth

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 2
Current: £1,212 GBP|Low: £1,150 GBP|High: £1,347 GBP|Avg: £1,222 GBP|-3.3%
DreamStone
Retailer 2
September 23, 2026
Retailer 2£1,164 GBP
DreamStone£1,212 GBP

5 data points across 2 retailers

2 retailers£1,164 GBP to £1,212 GBP

C
Cheapest Retailer
-
£1,164 GBP
$1,562 USD
Most Expensive
C
DreamStone
692fe0133b0275f7885149a1 · Oct 31
£1,212 GBP
$1,627 USD
View
1 more retailer has this diamond
Prices start from £1,164 GBPSave up to £48 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.

C
0.65ct Marquise
£1,164 GBP