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Marquise|Natural|GIA

0.45ct I SI2 Marquise Natural Diamond

GD • I/SI2 • GIA 1568346504

Certificate GIA 1568346504

Diamond specifications and retailer prices

From £272 GBP
$365 USD
As of November 1, 2026
Save £103 GBP (27%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £375 GBP at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 0.45ct natural marquise diamond

This 0.45ct natural marquise sits in the sub-half-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1568346504. Listed at 3 retailers as of November 1, 2026, with prices from £272 to £375, a £103 spread on the same certified stone. 77 Diamonds lists it at £375. 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

0.45
Carat
I
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1568346504
Dimensions8.16 × 3.73 × 2.45 mm
L/W Ratio2.19
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather
Top View
8.16 mm3.73 mm0.45 ctI / SI2
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceFaint
CertificateGIA 1568346504
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.8%

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: Nov 1
Current: £375 GBP|Low: £272 GBP|High: £375 GBP|Avg: £315 GBP|+5.5%
77 Diamonds
Retailer 2
Retailer 3
November 2, 2026
Retailer 2£272 GBP
Retailer 3£292 GBP
77 Diamonds£375 GBP

32 data points across 3 retailers

3 retailers£272 GBP to £375 GBP

B+
Cheapest Retailer
-
£272 GBP
$365 USD
B+
Retailer 2
-
£292 GBP
SGD 530 SGD
View
Most Expensive
B
77 Diamonds
MQCPUFXP26QK · Nov 2
£375 GBP
View
2 more retailers have this diamond
Prices start from £272 GBPSave up to £103 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+
0.45ct Marquise
£272 GBP