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Cushion|Natural|GIA

3.51ct H SI1 Cushion Natural Diamond

VG • H/SI1 • GIA 3555137190

Certificate GIA 3555137190

Diamond specifications and retailer prices

From $47,784 AUD
As of November 6, 2026
Save $40,799 AUD (46%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $88,583 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 3.51ct natural cushion diamond

This 3.51ct natural cushion sits in the three to five carat band, graded H 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 3555137190. Listed at 11 retailers as of November 4, 2026, with prices from $47,784 to $88,583, a $40,799 spread on the same certified stone. MOH London lists it at $88,583. 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

3.51
Carat
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle55.6°
OriginNatural
Grading LabGIA
CertificateGIA 3555137190
Dimensions10.14 × 8.17 × 5.56 mm
L/W Ratio1.24
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
10.14 mm8.17 mm3.51 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555137190
Side View
Table 69.0%Crown 32.4°Girdle: THK-VTKPavilion 55.6°Culet: NoneDepth 68.0%

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: $88,583 AUD|Low: $47,170 AUD|High: $88,937 AUD|Avg: $60,114 AUD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 4, 2026
Retailer 4$47,170 AUD
Retailer 3$47,784 AUD
Retailer 10$52,293 AUD
Retailer 11$56,523 AUD
Retailer 12$61,689 AUD
Retailer 7$61,971 AUD
Retailer 9$61,971 AUD
Retailer 8$64,038 AUD
Retailer 2$65,304 AUD
Retailer 6$68,704 AUD
Retailer 5$68,718 AUD
MOH London$88,583 AUD

28 data points across 12 retailers

11 retailers$47,784 AUD to $88,583 AUD

B+
Cheapest Retailer
-
$47,784 AUD
B+
Retailer 2
-
$52,293 AUD
View
B+
Retailer 3
-
$56,523 AUD
View
B
Retailer 4
-
$61,689 AUD
View
B
Retailer 5
-
$61,971 AUD
View
B
Retailer 6
-
$61,971 AUD
View
B
Retailer 7
-
$64,038 AUD
View
B
Retailer 8
-
$65,304 AUD
View
B
Retailer 9
-
$68,704 AUD
View
B
Retailer 10
-
$68,718 AUD
View
Most Expensive
B
MOH London
74892BBF9 · Nov 4
$88,583 AUD
£47,925 GBP
View
10 more retailers have this diamond
Prices start from $47,784 AUDSave up to $40,799 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+
3.51ct Cushion
$47,784 AUD