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Marquise|Natural|GIA

0.99ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 15734060

Certificate GIA 15734060

Diamond specifications and retailer prices

From £2,229 GBP
As of November 4, 2026
Save £1,066 GBP (32%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £3,295 GBP at 77 Diamonds · As of November 5, 2026
View at 77 Diamonds

About this 0.99ct natural marquise diamond

This 0.99ct natural marquise sits in the just-under-one-carat band, graded E 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 15734060. Listed at 4 retailers as of November 4, 2026, with prices from £2,229 to £3,295, a £1,066 spread on the same certified stone. 77 Diamonds lists it at £3,295. 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

0.99
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishGood
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 15734060
Dimensions9.68 × 5.29 × 3.32 mm
L/W Ratio1.83
Top View
9.68 mm5.29 mm0.99 ctE / SI1
OriginNatural
CutExcellent
PolishGood
SymmetryGood
FluorescenceFaint
CertificateGIA 15734060
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: SmallDepth 62.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £3,295 GBP|Low: £2,213 GBP|High: £3,340 GBP|Avg: £2,780 GBP|+1.1%
77 Diamonds
Retailer 2
November 5, 2026
Retailer 2£2,245 GBP
77 Diamonds£3,295 GBP

34 data points across 2 retailers

4 retailers£2,229 GBP to £3,295 GBP

B+
Cheapest Retailer
-
£2,229 GBP
B+
Retailer 2
-
£2,245 GBP
View
B
Retailer 3
-
£2,413 GBP
View
Most Expensive
B
77 Diamonds
MQZMRR8DQUW · Nov 5
£3,295 GBP
View
3 more retailers have this diamond
Prices start from £2,229 GBPSave up to £1,066 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+
0.99ct Marquise
£2,229 GBP