CaratHunter
Plans
Cushion|Natural|GIA

1.51ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 1425256232

Certificate GIA 1425256232

Diamond specifications and retailer prices

From $4,630 USD
As of November 2, 2026
Save $4,423 USD (49%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $9,053 USD 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1425256232. Listed at 20 retailers as of November 1, 2026, with prices from $4,630 to $9,053, a $4,423 spread on the same certified stone. MOH London lists it at $9,053. 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

1.51
Carat
G
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1425256232
Dimensions6.16 × 6.04 × 4.61 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle, Indented Natural
Top View
6.16 mm6.04 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1425256232
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 76.4%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: $9,053 USD|Low: $4,452 USD|High: $9,162 USD|Avg: $6,322 USD|-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 10$4,630 USD
Retailer 6$4,895 USD
Retailer 8$4,897 USD
Retailer 11$5,210 USD
Retailer 7$5,567 USD
Retailer 4$5,895 USD
Retailer 9$6,106 USD
Retailer 2$6,713 USD
Retailer 5$7,550 USD
Retailer 3$8,903 USD
MOH London$9,053 USD

45 data points across 11 retailers

20 retailers$4,630 USD to $9,053 USD

A
Cheapest Retailer
-
$4,630 USD
A
Retailer 2
-
$4,800 USD
View
A
Retailer 3
-
$4,855 USD
View
A
Retailer 4
-
$4,895 USD
View
A
Retailer 5
-
$4,897 USD
View
Final sale: no returns
A
Retailer 6
-
$4,917 USD
View
A
Retailer 7
-
$5,180 USD
CA$7,195 CAD
View
A
Retailer 8
-
$5,210 USD
View
B+
Retailer 9
-
$5,228 USD
View
B+
Retailer 10
-
$5,500 USD
View
B+
Retailer 11
-
$5,567 USD
View
B+
Retailer 12
-
$5,868 USD
View
B+
Retailer 13
-
$5,895 USD
£4,642 GBP
View
Retailer 14
-
$6,106 USD
A$9,394 AUD
View
Price last confirmed 29 days ago
B+
Retailer 15
-
$6,713 USD
€6,393 EUR
View
Retailer 16
-
$6,776 USD
View
Price last confirmed 10 days ago
B
Retailer 17
-
$6,960 USD
View
B+
Retailer 18
-
$7,550 USD
ZAR 121,964 ZAR
View
B
Retailer 19
-
$8,903 USD
View
Most Expensive
B
MOH London
C97E3DB6C · Nov 1
$9,053 USD
£7,128 GBP
View
19 more retailers have this diamond
Prices start from $4,630 USDSave up to $4,423 USD

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
1.51ct Cushion
$4,630 USD