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Cushion|Natural|GIA

1.51ct L SI1 Cushion Natural Diamond

VG • L/SI1 • GIA 1216663338

Certificate GIA 1216663338

Diamond specifications and retailer prices

From $5,101 AUD
As of November 4, 2026
Save $2,438 AUD (32%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $7,539 AUD at 77 Diamonds · As of November 5, 2026
View at 77 Diamonds

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded L colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1216663338. Listed at 5 retailers as of November 4, 2026, with prices from $5,101 to $7,539, a $2,438 spread on the same certified stone. 77 Diamonds lists it at $7,539. 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

1.51
Carat
L
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1216663338
Dimensions6.61 × 6.59 × 4.49 mm
L/W Ratio1.00
Top View
6.61 mm6.59 mm1.51 ctL / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1216663338
Side View
Table 61.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 68.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $7,539 AUD|Low: $4,937 AUD|High: $7,686 AUD|Avg: $6,104 AUD|+12.8%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 3$5,101 AUD
Retailer 2$5,110 AUD
Retailer 7$5,583 AUD
Retailer 6$5,711 AUD
Retailer 4$6,330 AUD
77 Diamonds$7,539 AUD
Retailer 5$7,679 AUD

41 data points across 7 retailers

5 retailers$5,101 AUD to $7,539 AUD

B
Cheapest Retailer
-
$5,101 AUD
B
Retailer 2
-
$5,110 AUD
View
B
Retailer 3
-
$5,711 AUD
View
C
Retailer 4
-
$6,330 AUD
View
Most Expensive
C
77 Diamonds
CUSZ8Y4PGVAD · Nov 5
$7,539 AUD
£4,079 GBP
View
4 more retailers have this diamond
Prices start from $5,101 AUDSave up to $2,438 AUD

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
1.51ct Cushion
$5,101 AUD