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Cushion|Natural|GIA

1.51ct G SI1 Cushion Natural Diamond

GD • G/SI1 • GIA 5201677904

Certificate GIA 5201677904

Diamond specifications and retailer prices

From $11,111 AUD
$7,787 USD
As of November 2, 2026
Save $8,482 AUD (43%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $19,593 AUD at MOH London · As of November 1, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5201677904. Listed at 22 retailers as of November 1, 2026, with prices from $11,111 to $19,593, a $8,482 spread on the same certified stone. MOH London lists it at $19,593. 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
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5201677904
Dimensions7.01 × 6.37 × 4.42 mm
L/W Ratio1.10
Top View
7.01 mm6.37 mm1.51 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5201677904
Side View
Table 65.0%CrownGirdle: STK-STKPavilionCulet: NoneDepth 69.4%

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 2
Current: $19,593 AUD|Low: $10,959 AUD|High: $19,829 AUD|Avg: $14,168 AUD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 3$11,111 AUD
Retailer 7$11,180 AUD
Retailer 9$11,746 AUD
Retailer 11$12,544 AUD
Retailer 10$12,545 AUD
Retailer 8$12,765 AUD
Retailer 4$13,718 AUD
Retailer 6$13,783 AUD
Retailer 2$15,802 AUD
Retailer 5$18,430 AUD
MOH London$19,593 AUD

43 data points across 11 retailers

22 retailers$11,111 AUD to $19,593 AUD

B
Cheapest Retailer
-
$11,111 AUD
$7,787 USD
B+
Retailer 2
-
$11,180 AUD
$7,835 USD
View
B
Retailer 3
-
$11,689 AUD
$8,192 USD
View
B
Retailer 4
-
$11,746 AUD
$8,232 USD
View
B
Retailer 5
-
$12,102 AUD
$8,482 USD
View
B
Retailer 6
-
$12,457 AUD
$8,730 USD
View
B
Retailer 7
-
$12,544 AUD
$8,791 USD
View
Final sale: no returns
B
Retailer 8
-
$12,545 AUD
$8,792 USD
View
B
Retailer 9
-
$12,765 AUD
$8,946 USD
View
B
Retailer 10
-
$13,299 AUD
CA$12,944 CAD
View
B
Retailer 11
-
$13,374 AUD
$9,373 USD
View
B
Retailer 12
-
$13,718 AUD
£7,570 GBP
View
B
Retailer 13
-
$13,771 AUD
View
B
Retailer 14
-
$13,781 AUD
$9,658 USD
View
Retailer 15
-
$13,783 AUD
View
Price last confirmed 9 days ago
B
Retailer 16
-
$14,611 AUD
$10,240 USD
View
B
Retailer 17
-
$14,611 AUD
$10,240 USD
View
B
Retailer 18
-
$15,097 AUD
$10,580 USD
View
B
Retailer 19
-
$15,802 AUD
€10,547 EUR
View
Retailer 20
-
$16,512 AUD
$11,572 USD
View
Price last confirmed 10 days ago
B
Retailer 21
-
$18,430 AUD
ZAR 208,660 ZAR
View
Most Expensive
B
MOH London
B9910693B · Nov 1
$19,593 AUD
£10,812 GBP
View
21 more retailers have this diamond
Prices start from $11,111 AUDSave up to $8,482 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
$11,111 AUD