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Cushion|Natural|GIA

0.77ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 2554466437

Certificate GIA 2554466437

Diamond specifications and retailer prices

From £608 GBP
$815 USD
As of November 2, 2026
Save £327 GBP (35%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £935 GBP at GemTrove · As of November 1, 2026
View at GemTrove

About this 0.77ct natural cushion diamond

This 0.77ct natural cushion sits in the just-under-one-carat band, graded D 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 2554466437. Listed at 7 retailers as of November 1, 2026, with prices from £608 to £935, a £327 spread on the same certified stone. GemTrove lists it at £935. 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

0.77
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554466437
Dimensions5.15 × 5.12 × 3.48 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal
Top View
5.15 mm5.12 mm0.77 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2554466437
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £935 GBP|Low: £537 GBP|High: £935 GBP|Avg: £712 GBP
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 6£608 GBP
Retailer 7£612 GBP
Retailer 3£664 GBP
Retailer 5£684 GBP
Retailer 2£689 GBP
Retailer 4£749 GBP
GemTrove£935 GBP

40 data points across 7 retailers

7 retailers£608 GBP to £935 GBP

A
Cheapest Retailer
-
£608 GBP
$815 USD
Final sale: no returns
A
Retailer 2
-
£612 GBP
MYR 3,342 MYR
View
A
Retailer 3
-
£664 GBP
$890 USD
View
A
Retailer 4
-
£684 GBP
SGD 1,239 SGD
View
A
Retailer 5
-
£689 GBP
View
A
Retailer 6
-
£749 GBP
$1,004 USD
View
Most Expensive
A
GemTrove
GT-N-00957475-98 · Nov 1
£935 GBP
A$1,928 AUD
View
6 more retailers have this diamond
Prices start from £608 GBPSave up to £327 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.

A
0.77ct Cushion
£608 GBP