CaratHunter
Plans
Cushion|Natural|GIA

3.51ct E SI1 Cushion Natural Diamond

VG • E/SI1 • GIA 6485456365

Certificate GIA 6485456365

Diamond specifications and retailer prices

From $68,653 SGD
As of November 7, 2026
Save $14,077 SGD (17%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $82,730 SGD at 77 Diamonds · As of November 7, 2026
View at 77 Diamonds

About this 3.51ct natural cushion diamond

This 3.51ct natural cushion sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6485456365. Listed at 3 retailers as of November 7, 2026, with prices from $68,653 to $82,730, a $14,077 spread on the same certified stone. 77 Diamonds lists it at $82,730. 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
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryExcellent
FluorescenceMedium
Crown angle42.13°
Pavilion angle35.42°
OriginNatural
Grading LabGIA
CertificateGIA 6485456365
Dimensions9.88 × 7.85 × 5.48 mm
L/W Ratio1.26
Top View
9.88 mm7.85 mm3.51 ctE / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6485456365
Side View
Table 64.0%Crown 42.13°Girdle: STK-ETKPavilion 35.42°Culet: NoneDepth 69.8%

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 7
Current: $82,730 SGD|Low: $68,653 SGD|High: $84,401 SGD|Avg: $76,673 SGD|-0.8%
77 Diamonds
Retailer 2
November 7, 2026
Retailer 2$68,653 SGD
77 Diamonds$82,730 SGD

46 data points across 2 retailers

3 retailers$68,653 SGD to $82,730 SGD

B+
Cheapest Retailer
-
$68,653 SGD
B
Retailer 2
-
$71,752 SGD
View
Most Expensive
B
77 Diamonds
CUSMBUPC28BNB · Nov 7
$82,730 SGD
£50,828 GBP
View
2 more retailers have this diamond
Prices start from $68,653 SGDSave up to $14,077 SGD

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
$68,653 SGD