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Cushion|Natural|GIA

1.51ct I SI1 Cushion Natural Diamond

VG • I/SI1 • GIA 1543770021

Certificate GIA 1543770021

Diamond specifications and retailer prices

From $7,558 AUD
As of November 6, 2026
Save $7,260 AUD (49%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $14,818 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1543770021. Listed at 21 retailers as of November 4, 2026, with prices from $7,558 to $14,818, a $7,260 spread on the same certified stone. MOH London lists it at $14,818. 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
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1543770021
Dimensions7.59 × 6.22 × 4.30 mm
L/W Ratio1.22
Girdle conditionFaceted
Culet sizeNone
Top View
7.59 mm6.22 mm1.51 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1543770021
Side View
Table 69.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 69.1%

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 6
Current: $14,818 AUD|Low: $7,558 AUD|High: $15,038 AUD|Avg: $10,001 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 9$7,558 AUD
Retailer 8$7,968 AUD
Retailer 5$8,043 AUD
Retailer 10$9,002 AUD
Retailer 7$9,137 AUD
Retailer 2$9,601 AUD
Retailer 6$9,889 AUD
Retailer 3$10,853 AUD
Retailer 4$12,305 AUD
MOH London$14,818 AUD

46 data points across 10 retailers

21 retailers$7,558 AUD to $14,818 AUD

B+
Cheapest Retailer
-
$7,558 AUD
B+
Retailer 2
-
$7,878 AUD
View
B+
Retailer 3
-
$7,968 AUD
View
B+
Retailer 4
-
$8,043 AUD
View
Final sale: no returns
B+
Retailer 5
-
$8,073 AUD
View
Retailer 6
-
$8,261 AUD
View
Price last confirmed 23 days ago
B+
Retailer 7
-
$8,281 AUD
View
B
Retailer 8
-
$9,002 AUD
View
Retailer 9
-
$9,137 AUD
View
Price last confirmed 9 days ago
B
Retailer 10
-
$9,204 AUD
View
B
Retailer 11
-
$9,306 AUD
View
B
Retailer 12
-
$9,341 AUD
View
B+
Retailer 13
-
$9,601 AUD
View
Retailer 14
-
$9,889 AUD
View
Price last confirmed 34 days ago
B
Retailer 15
-
$9,984 AUD
View
B
Retailer 16
-
$9,984 AUD
View
B
Retailer 17
-
$10,319 AUD
View
B
Retailer 18
-
$10,853 AUD
View
Retailer 19
-
$11,118 AUD
View
Price last confirmed 15 days ago
B
Retailer 20
-
$12,305 AUD
View
Most Expensive
B
MOH London
36872112B · Nov 4
$14,818 AUD
£8,017 GBP
View
20 more retailers have this diamond
Prices start from $7,558 AUDSave up to $7,260 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
$7,558 AUD